Correct silly typo in unchecked_factorial.hpp.
Remove TEST_STD define in config.hpp as it needlessly breaks the TR1 tests.
Remove lexical_cast.hpp workaround file.
Correct #pragma in tr1.hpp.
Suppress some more gcc warnings: in particular make sure that our C99 functions have the same throw specification as the functions in math.h.
[SVN r59129]