* Set `widget.js` location to protocol agnostic
* Cleaned up code
* Improved i18n textdomain references
* Changed tags to more simple references to plugin functionality

git-svn-id: https://plugins.svn.wordpress.org/bns-twitter-follow-button/trunk@1018546 b8457f37-d9ea-0310-8a92-e5e31aec5664