Added filter to modify term and actions together.
Merge pull request #10 from spivurno/master

Adds a filter which allows you to modify the term and actions allowing users to similuate the behavoir of "keyword" actions (ie "search", "edit" and "view").
Updated version for 1.8 development, and added changelog entry for @spivurno's merged pull request.
Moved keyword functionality to methods, and implemented all post search with filtering by type, fixes #5
Implemented user search, fixes #7
Merge branch 'master' of git://github.com/Japh/wp-butler