additional refactor to have ImageFilter be an extention of Peyote/Select and add filter param to image/random
regenerated api docs for image/random filter param
Merge branch 'master' into filter
modification to a couple tips to use icons
change how image sigs are generated.  Will need to recreate all signatures
tool to regenerate all the image signatures
updated media test to work with new hashing
Merge branch 'master' into filter

Conflicts:
	tools/one-off/regenerate_media.php
yet another fix for media db info
early work on image filter ui
now this script recreates the thumbnail file
General image filter functionality is present, still needs UI to be touched up
Merge branch 'filter'