Add git tags for release versions in Bower

[wwuck]

Bower requires git tags to retrieve the version numbers. Please add a git tag for the latest version 1.3.6 in the repository and any future release versions.

http://bower.io/docs/creating-packages/#register

• Your package should use semver Git tags. The v prefix is allowed.
• Your package must be publically available at a Git endpoint (e.g., GitHub). Remember to push your Git tags!