[Distutils] Strict/Loose Version and toolchains checks

[David Cournapeau]

Hi,
   
    Since we are talking about versioning, here is one more complaint
which may fall into the bugreport category or not, I am not sure. There
are some version checks in some codepaths which do not make much sense
IMHO, in particular:
    - distutils checks the versions of the toolchain. This is broken. If
I want to use gcc built from svn to build my extensions, distutils
should just do what I ask it to do, and not barf as it currently does.
    - bdist_msi also fails to run when the project version is not a
released version. I can't see the rationale for that behavior, and it is
not consistent with others bdist_ anyway.

thanks,

David