[issue6041] change sdist and register command so they use check

Tarek Ziadé added the comment: done in r72681, r72683 -- dependencies: +add a new command called "check" into Distutils status: open -> closed ___ Python tracker ___

[issue6041] change sdist and register command so they use check

Tarek Ziadé added the comment: the old check_metadata method, duplicated in sdist and register, will be marked with a PendingDeprecationWarning. -- ___ Python tracker ___ ___

[issue6041] change sdist and register command so they use check

New submission from Tarek Ziadé : the check command now is able to check the meta-data, so we can remove duplicate code located in both "sdist" and "register" and call "check as a subcommand. - register will also have a new boolean option called "strict". If set to True (it's unset by default),