Feature request: Version numbers

[jonasstein]

Thank you for style-check. It would be very helpful for distribution, if you would tag a release version from time to time (something like this: http://semver.org/). Especially since there was a change from GPL-2 to GPL-3 in the past. There was a 0.14 version on http://www.cs.umd.edu/~nspring/software/style-check-readme.html, so the later version numbers should be larger (at least 0.14.1 or 0.15)