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Merge branch 'pharo3.0' of github.com:demarey/filetree into pharo3.0_dev

manual merge of https://github.com/dalehenrich/filetree/pull/108

Conflicts:
	repository/MonticelloFileTree-Core.package/monticello.meta/version
properly rename the package from MonticelloFileTree-Core.pharo30 to MonticelloFileTree-Core
Merge branch 'pharo3.0_dev' into pharo3.0

Merge pull request #108: https://github.com/dalehenrich/filetree/pull/108