avatar_selection 6.x-1.7

Changes since 6.x-1.6:

• #734116: enabled assignment of random default avatar on registration when anon users do not have the permission "access avatars"
• #1008998 by ressa: changed colour of image selected and hover boxes
• #1426134 by bcmiller0: Fixed Undefined index: picture.
• #1062348 by SeanA: Fixed 'upload avatar in profile' has no effect.
• changed some help text
• #431500 by chrisdawson - added support for imagecache
• re-implemented js pager using Drupal behaviors
• #598194 by amielf - fix for white overlay issue in safari
• #566626 by rmjiv - fix for random deletion of avatars