avatar_selection 6.x-1.5

Changes since DRUPAL-6--1-4:

New Features:

• #282832 - added ability to set default name for bulk uploaded avatars.
• Modified the table structure, added two new tables and modified the image list generation sql so as to help improve performance.

Bug Fixes, maintenance, etc:

• #280612 - fix for missing update function.
• #280320 - patch for avatar page numbers not centering in one number and not only showing a subset of the numbers for long lists.
• #282487 - Removed some unused code
• #289481 - fix for organic groups error when module is enabled but no groups are configured.
• #289481 - fixed issue where random avatar isn't assigned when custom image is deleted.
• #288491 - fix for distinct avatars feature not working.
• Fix for editing the avatars associated with an organic group.
• Added in note on hook_update_n() naming convention.
• Added in db_placeholders() in place of "IN (%s)".
• Updated coding style.
• Updated translation file.