Fixes #2022, do not resume on Android when surfaceChanged

If the app is in landscape mode and the user presses the power button, a pause
is followed immediately by a surfaceChanged event because the lock screen
is shown in portrait mode. This triggers a "false" resume.
So, we just pause and resume following the onWindowFocusChanged events.

Also, wait for SDL_APP_WILLENTERBACKGROUND and SDL_APP_DIDENTERBACKGROUND before
blocking the event pump.

Xcode-iOS/Demos/data/bitmapfont/license.txt

@@ -0,0 +1,258 @@
+  __            _                    _    
+ / _|          | |                  | |   
+| |_ ___  _ __ | |_ _ __   __ _  ___| | __
+|  _/ _ \| '_ \| __| '_ \ / _` |/ __| |/ /
+| || (_) | | | | |_| |_) | (_| | (__|   < 
+|_| \___/|_| |_|\__| .__/ \__,_|\___|_|\_\
+                   | |                    
+                   |_|                              
+----------------------------------------------------------------------
+Product	: font-pack.zip
+Website	: http://www.spicypixel.net
+Author	: Marc Russell
+Released: 16th January 2008
+----------------------------------------------------------------------
+
+What is this?
+-------------
+font-pack is a package of free art assets to be used under the terms of this document. It is available to game developers and hobbyists alike.
+
+Contents
+--------
+The contents of the font-pack ZIP file include 20 bitmap fonts
+
+Usage License & Restrictions
+----------------------------
+font-pack is distributed under the "Common Public License Version 1.0."
+The terms of which are given below. If you do not understand the terms of the license please refer to a solicitor. It should however, be relatively clear how this package can be used.
+
+THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS COMMON 
+PUBLIC LICENSE ("AGREEMENT"). ANY USE, REPRODUCTION OR DISTRIBUTION OF 
+THE PROGRAM CONSTITUTES RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT.
+
+1. DEFINITIONS
+
+"Contribution" means:
+
+    a) in the case of the initial Contributor, the initial code and 
+    documentation distributed under this Agreement, and
+
+    b) in the case of each subsequent Contributor:
+
+    i) changes to the Program, and
+
+    ii) additions to the Program;
+
+    where such changes and/or additions to the Program originate from 
+    and are distributed by that particular Contributor. A Contribution 
+    'originates' from a Contributor if it was added to the Program by 
+    such Contributor itself or anyone acting on such Contributor's 
+    behalf. Contributions do not include additions to the Program which: 
+    (i) are separate modules of software distributed in conjunction with 
+    the Program under their own license agreement, and (ii) are not 
+    derivative works of the Program.
+
+"Contributor" means any person or entity that distributes the Program.
+
+"Licensed Patents " mean patent claims licensable by a Contributor which 
+are necessarily infringed by the use or sale of its Contribution alone 
+or when combined with the Program.
+
+"Program" means the Contributions distributed in accordance with this 
+Agreement.
+
+"Recipient" means anyone who receives the Program under this Agreement, 
+including all Contributors.
+
+2. GRANT OF RIGHTS
+
+    a) Subject to the terms of this Agreement, each Contributor hereby 
+    grants Recipient a non-exclusive, worldwide, royalty-free copyright 
+    license to reproduce, prepare derivative works of, publicly display, 
+    publicly perform, distribute and sublicense the Contribution of such 
+    Contributor, if any, and such derivative works, in source code and 
+    object code form.
+
+    b) Subject to the terms of this Agreement, each Contributor hereby 
+    grants Recipient a non-exclusive, worldwide, royalty-free patent 
+    license under Licensed Patents to make, use, sell, offer to sell, 
+    import and otherwise transfer the Contribution of such Contributor, 
+    if any, in source code and object code form. This patent license 
+    shall apply to the combination of the Contribution and the Program 
+    if, at the time the Contribution is added by the Contributor, such 
+    addition of the Contribution causes such combination to be covered 
+    by the Licensed Patents. The patent license shall not apply to any 
+    other combinations which include the Contribution. No hardware per 
+    se is licensed hereunder.
+
+    c) Recipient understands that although each Contributor grants the 
+    licenses to its Contributions set forth herein, no assurances are 
+    provided by any Contributor that the Program does not infringe the 
+    patent or other intellectual property rights of any other entity. 
+    Each Contributor disclaims any liability to Recipient for claims 
+    brought by any other entity based on infringement of intellectual 
+    property rights or otherwise. As a condition to exercising the 
+    rights and licenses granted hereunder, each Recipient hereby assumes 
+    sole responsibility to secure any other intellectual property rights 
+    needed, if any. For example, if a third party patent license is 
+    required to allow Recipient to distribute the Program, it is 
+    Recipient's responsibility to acquire that license before 
+    distributing the Program.
+
+    d) Each Contributor represents that to its knowledge it has 
+    sufficient copyright rights in its Contribution, if any, to grant 
+    the copyright license set forth in this Agreement.
+
+3. REQUIREMENTS
+
+A Contributor may choose to distribute the Program in object code form 
+under its own license agreement, provided that:
+
+    a) it complies with the terms and conditions of this Agreement; and
+
+    b) its license agreement:
+
+    i) effectively disclaims on behalf of all Contributors all 
+    warranties and conditions, express and implied, including warranties 
+    or conditions of title and non-infringement, and implied warranties 
+    or conditions of merchantability and fitness for a particular 
+    purpose;
+
+    ii) effectively excludes on behalf of all Contributors all liability 
+    for damages, including direct, indirect, special, incidental and 
+    consequential damages, such as lost profits;
+
+    iii) states that any provisions which differ from this Agreement are 
+    offered by that Contributor alone and not by any other party; and
+
+    iv) states that source code for the Program is available from such 
+    Contributor, and informs licensees how to obtain it in a reasonable 
+    manner on or through a medium customarily used for software 
+    exchange. 
+
+When the Program is made available in source code form:
+
+    a) it must be made available under this Agreement; and
+
+    b) a copy of this Agreement must be included with each copy of the 
+    Program. 
+
+Contributors may not remove or alter any copyright notices contained 
+within the Program.
+
+Each Contributor must identify itself as the originator of its 
+Contribution, if any, in a manner that reasonably allows subsequent 
+Recipients to identify the originator of the Contribution.
+
+4. COMMERCIAL DISTRIBUTION
+
+Commercial distributors of software may accept certain responsibilities 
+with respect to end users, business partners and the like. While this 
+license is intended to facilitate the commercial use of the Program, the 
+Contributor who includes the Program in a commercial product offering 
+should do so in a manner which does not create potential liability for 
+other Contributors. Therefore, if a Contributor includes the Program in 
+a commercial product offering, such Contributor ("Commercial 
+Contributor") hereby agrees to defend and indemnify every other 
+Contributor ("Indemnified Contributor") against any losses, damages and 
+costs (collectively "Losses") arising from claims, lawsuits and other 
+legal actions brought by a third party against the Indemnified 
+Contributor to the extent caused by the acts or omissions of such 
+Commercial Contributor in connection with its distribution of the 
+Program in a commercial product offering. The obligations in this 
+section do not apply to any claims or Losses relating to any actual or 
+alleged intellectual property infringement. In order to qualify, an 
+Indemnified Contributor must: a) promptly notify the Commercial 
+Contributor in writing of such claim, and b) allow the Commercial 
+Contributor to control, and cooperate with the Commercial Contributor 
+in, the defense and any related settlement negotiations. The Indemnified 
+Contributor may participate in any such claim at its own expense.
+
+For example, a Contributor might include the Program in a commercial 
+product offering, Product X. That Contributor is then a Commercial 
+Contributor. If that Commercial Contributor then makes performance 
+claims, or offers warranties related to Product X, those performance 
+claims and warranties are such Commercial Contributor's responsibility 
+alone. Under this section, the Commercial Contributor would have to 
+defend claims against the other Contributors related to those 
+performance claims and warranties, and if a court requires any other 
+Contributor to pay any damages as a result, the Commercial Contributor 
+must pay those damages.
+
+5. NO WARRANTY
+
+EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, THE PROGRAM IS PROVIDED 
+ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, 
+EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT LIMITATION, ANY WARRANTIES 
+OR CONDITIONS OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR 
+A PARTICULAR PURPOSE. Each Recipient is solely responsible for 
+determining the appropriateness of using and distributing the Program 
+and assumes all risks associated with its exercise of rights under this 
+Agreement, including but not limited to the risks and costs of program 
+errors, compliance with applicable laws, damage to or loss of data, 
+programs or equipment, and unavailability or interruption of operations.
+
+6. DISCLAIMER OF LIABILITY
+
+EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, NEITHER RECIPIENT NOR 
+ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY DIRECT, INDIRECT, 
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING 
+WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND ON ANY THEORY OF 
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OR 
+DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED 
+HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+7. GENERAL
+
+If any provision of this Agreement is invalid or unenforceable under 
+applicable law, it shall not affect the validity or enforceability of 
+the remainder of the terms of this Agreement, and without further action 
+by the parties hereto, such provision shall be reformed to the minimum 
+extent necessary to make such provision valid and enforceable.
+
+If Recipient institutes patent litigation against a Contributor with 
+respect to a patent applicable to software (including a cross-claim or 
+counterclaim in a lawsuit), then any patent licenses granted by that 
+Contributor to such Recipient under this Agreement shall terminate as of 
+the date such litigation is filed. In addition, if Recipient institutes 
+patent litigation against any entity (including a cross-claim or 
+counterclaim in a lawsuit) alleging that the Program itself (excluding 
+combinations of the Program with other software or hardware) infringes 
+such Recipient's patent(s), then such Recipient's rights granted under 
+Section 2(b) shall terminate as of the date such litigation is filed.
+
+All Recipient's rights under this Agreement shall terminate if it fails 
+to comply with any of the material terms or conditions of this Agreement 
+and does not cure such failure in a reasonable period of time after 
+becoming aware of such noncompliance. If all Recipient's rights under 
+this Agreement terminate, Recipient agrees to cease use and distribution 
+of the Program as soon as reasonably practicable. However, Recipient's 
+obligations under this Agreement and any licenses granted by Recipient 
+relating to the Program shall continue and survive.
+
+Everyone is permitted to copy and distribute copies of this Agreement, 
+but in order to avoid inconsistency the Agreement is copyrighted and may 
+only be modified in the following manner. The Agreement Steward reserves 
+the right to publish new versions (including revisions) of this 
+Agreement from time to time. No one other than the Agreement Steward has 
+the right to modify this Agreement. IBM is the initial Agreement 
+Steward. IBM may assign the responsibility to serve as the Agreement 
+Steward to a suitable separate entity. Each new version of the Agreement 
+will be given a distinguishing version number. The Program (including 
+Contributions) may always be distributed subject to the version of the 
+Agreement under which it was received. In addition, after a new version 
+of the Agreement is published, Contributor may elect to distribute the 
+Program (including its Contributions) under the new version. Except as 
+expressly stated in Sections 2(a) and 2(b) above, Recipient receives no 
+rights or licenses to the intellectual property of any Contributor under 
+this Agreement, whether expressly, by implication, estoppel or 
+otherwise. All rights in the Program not expressly granted under this 
+Agreement are reserved.
+
+This Agreement is governed by the laws of the State of New York and the 
+intellectual property laws of the United States of America. No party to 
+this Agreement will bring a legal action under this Agreement more than 
+one year after the cause of action arose. Each party waives its rights 
+to a jury trial in any resulting litigation.
+