Bug 833079 - python touch layer should check if element is displayed before acting on it, r=jgriffin
Bug 832623 - Disable -fstrict-aliasing in the JS engine for gcc <= 4.4 on all platforms, not just Linux/Android. r=glandium
Bug 832620 - Skip the GCC <= 4.4 version check when building with clang. r=glandium