Removed rogue CATCH_CONFIG_SFINAE for GCC 3.x
Fix for #144
- string matchers now work with NULLs
Build 37
- string matchers work with NULLs
- removed stray CATCH_CONFIG_SFINAE for GCC 3
Merge commit 'c887d1a1679659a5c81a43ef05eb3aba88f33cfb' into merge-up-int
Merge commit '06548a5b6164ba8b6bc8e1b6a235bbac5bf38b2d' into merge-up-int
Use only one of two overloads with VC6 (const ArgT&)
Build 37

Merge commit 'd0d4d93a6be52fcb33cfeeb6dc10c26d4599a3ce' into merge-up-int

Conflicts:
	README.md
	single_include/catch.hpp