Fix version

[ajb]

• Use a constant Sync::VERSION for versioning
• Bump to 0.3.2 because that's the version on RubyGems... although I can't explain why.

[ajb]

Fails because Sync is already a class in Ruby's stdlib: http://ruby-doc.org/stdlib-1.9.3/libdoc/sync/rdoc/Sync_m.html

[chrismccord]

Fails because Sync is already a class in Ruby's stdlib

Hmm. That's a problem. I don't think we have namespace clashes elsewhere, but not sure what the best route from here is. I think for now we could just move the constant to another namespace.

[ajb]

Man. Changing our module's name would be pretty crappy too. If the only thing it's stopping us from doing is having our VERSION constant, then I'm fine punting on it for now.

[chrismccord]

If the only thing it's stopping us from doing is having our VERSION constant, then I'm fine punting on it for now.

Clashing namespaces in the stdlib is really not ideal, but I agree this is the best for now.

[ajb]

This finally comes around to bite us: rubygems/rubygems.org#1156 (comment)