[#issue-27] move VERSION file into prawn/table folder, and use the same in gemspec
[#issue-27] as suggested, do not add lib folder to loadpath
Merge pull request #28 from code-mancers/issue-27-ship-version-number

[#issue-27] move VERSION file into prawn/table folder
Allow anything up to Prawn 3.0

This should be safe because Prawn 2.0.0 is unlikely to break table behavior.
Bump version
Format rotated cell text