fixes to generators
added filter to scaffold models and tables in railsdbadmin
added filter to tables in rails_db_admin, added filter to models in scaffold desktop application, added config option for knitkit image file locations to keep other images from showing up in knikit.
fixed icon for mail
added deep linking and searching to knitkit docs pages.  Added back button disabling to desktop and organizer
bug fix and added content to search results
cleaned up content in search results
updated change logs and versions for release
Merge branch 'master' into extjs421