rustpkg: Handle non-numeric versions; some cleanup#8032

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catamorphism wants to merge 4 commits intorust-lang:masterfrom catamorphism:rustpkg-tags

+140-80

Commits on Jul 25, 2013

Commits on Jul 26, 2013

rustpkg: Don't assume a non-numeric refspec is a tag
catamorphism
committed

Commits on Jul 27, 2013

docs: Talk about tags that aren't versions in the "Package identifiers" section
catamorphism
committed