whitespace
firming up #is_local_address
docs on my idea
formatting standards
whitespace
no need for invariant culture

o format flag doesn't use it:
http://msdn.microsoft.com/en-us/library/az4se3k1
supporting waiting for the TCP Server to start, fixes #48
Merge branch 'feature/async-start'

@ademar Passing tests always: not that I have tried an infinite number of runs,
but it seems to work ;), example works.

Will improve testability from rake/CI:
https://github.com/SuaveIO/suave/commit/f555b9e2762314e7a0630926e74ed29c4df3d49f