Version 3.4.0

This release introduce two new features:

• You can now use customs parsers. Thanks to @ProGM
• most_used and less_used was added as scope for the tags. Thanks to @damzcodes

The README was updated with examples

You can safely upgrade your applications to Rails 4.2. Thanks to @twalpole

MySQL users will have a small performance boost in this version. Thanks to @dontfidget

Have a nice day and happy tagging.