Merge remote-tracking branch 'rasp/mem-leak' into development

* rasp/mem-leak:
  Fix another potential memory leak found by find-mem-leak.cocci.
  Add a rule for another type of memory leak to find-mem-leak.cocci.
  Fix a potential memory leak found by find-mem-leak.cocci.
  Add a semantic patch to find potential memory leaks.
  Fix whitespace of 369e6c20.
  Apply the semantic patch rm-malloc-cast.cocci.
  Add a semantic patch to remove casts of malloc.

Conflicts:
	programs/ssl/ssl_server2.c

scripts/find-mem-leak.cocci

@@ -0,0 +1,20 @@
+@@
+expression x, y;
+statement S;
+@@
+  x = polarssl_malloc(...);
+  y = polarssl_malloc(...);
+  ...
+* if (x == NULL || y == NULL)
+    S
+
+@@
+expression x, y;
+statement S;
+@@
+  if (
+*   (x = polarssl_malloc(...)) == NULL
+    ||
+*   (y = polarssl_malloc(...)) == NULL
+  )
+    S