Changed the way info messages are handled.
This fixes issue with SCOPED_INFO and makes output more readable.
Needs some refactoring.
Removed deprecated message code
Build 17 - includes reworking of message/ info handling
Updated message tests to reflect slightly changed semantics
Fixed sticky INFO (which persisted across TEST_CASEs) from #152 and generated build 18
Merge branch 'Integration' of https://github.com/philsquared/Catch into Integration

Conflicts:
	single_include/catch.hpp