Section no longer relies on copy-elision for correctness

- should address #293
- *may* address #271

include/internal/catch_section_info.h

@@ -13,13 +13,10 @@
 namespace Catch {
 
     struct SectionInfo {
-        SectionInfo(    std::string const& _name,
-                        std::string const& _description,
-                        SourceLineInfo const& _lineInfo )
-        :   name( _name ),
-            description( _description ),
-            lineInfo( _lineInfo )
-        {}
+        SectionInfo
+            (   SourceLineInfo const& _lineInfo,
+                std::string const& _name,
+                std::string const& _description = std::string() );
 
         std::string name;
         std::string description;