Allow friend collection names to store arbitrary plain text
Fixes #4587 not passing empty string to date()
Fixes #4349 friends can edit pages now
Fixes #4867 handling boolean false values as metadata pair value
Refs #4356 do not display elgg_dump() messages on js or css requests
Fixes #5083 removes messages sent by deleted user
put test in to prevent deleting messages from everyone in case no guid - should never happen
Fixes #4378 prevent loading same library name twice
Fixes #2682 strips tags from site name
Fixes #5302 - Automatically registers view to simplecache on elgg_get_simplecache_url call
Merge pull request #5303 from Srokap/ticket_5302

Fixes #5302 - Automatically registers view to simplecache on elgg_get_simplecache_url call
Fixes #1708. Moving up subpages when delete a page wasn't be applied in page_top subtype.
fixed the switch from page to page_top - the parent_guid metadata needed to be deleted
Refs #1708. Restore disappeared subpages, which its parent page was top_page and was deleted.
fixed upgrade script - was skipping pages because we were changing the results between calls to ElggBatch
Fixes #5304 handling metadata arrays in search for user profile data
Fixes #5037 returns free text search and relevance ranking for objects and groups
Fixes #3754: Language JS views send cache headers and support conditional get
Merge pull request #494 from mrclay/fc-plaintext

Allow friend collection names to store arbitrary plain text
Merge pull request #5300 from cash/remove_private_messages

Fixes #5083: Remove private messages sent by deleted user