Changes since DRUPAL-5--1-0:
- #797208 Fix for security advisory SA-CONTRIB-2010-043. Wrapped filtered word and replacement word in check_plain on admin pages and on block to address possible XSS issue.
- #691316 Used better text placeholder in worfilter testing message. Thanks to mr.baileys.
- #553996 Added logic to only filter node/comment titles if the input format of the node/comment's parent node has the wordfilter filter enabled.
- Coding standards cleanup.
- Added function comments to hook_update_N implementations.