Fix problem with generation of version files.
#parserClass is deprecated. Use compilerClass.
Merge changes from Dale's repository.
Fix a problem related to https://pharo.fogbugz.com/default.asp?10801
Merge pull request #103 from demarey/pharo3.0

fix MCFileTreeWriter to avoid failing tests ... we're down to 2 non-gitrepo tests that need to pass ...