Added full functionality and testing.
Updated version, and one of the specs.
Created binfile, updated command name to createtag, and utilize new testing practices.
Added the command to the README.md.
Added the new command to the travis.yml.
cleanup env setup
Changed us from createtag to buildtag.
Whoops
Version bump.
Merge pull request #3 from thegarage/build-tag

git createtag
Got rid of the .travis.yml's after_success block.
fixes #4 when github.user has not yet been configured
bump version
add expectations
fix nil error if no remote configured