Do not use timers, just kill it here and now on Windows
Bumped version locally for testing windows support
Ignore virtualenv bits
Fixed several tests so they pass on Windows. Only three failures left.

This is a work in progress: we are down to only 3 tests failures on
Windows. Several of the fixes are about adjusting expectations for
windows line ending support (\r\n instead of the posix \n) or
updating test fixtures to have a posix and a
windows-specific flavors of procfiles with windows commands instead of
bash so that they can run on both platforms.