Fixes #4904. Elgg 1.7 group blog RSS links forward correctly now.
Refs #4904. Forwarding pre and post-1.7.5 blog urls.
Refs #4904. Checking if page has segments before using them.
Style cleanup
Prevent false testElggDeleteMetadata() failures
Fixes #4896: Limit group profile RSS to seachable object types
Merge branch 'pr-424' into 1.8
Blog forwarder cleanup & viewtype propagation
Blog lib cleanup, logic simplification, remove notices & unused code
Merge branch 'pr-423' into 1.8
Limit messageboard posts to excerpts in activity stream
Fixes #4895: Output valid ETag and Expires headers
Fixes #1854. Group owners can delegate the ownership to another group member.
Refs #1854. Using text to warn of the handover, instead the toggle with javascript.
Refs #1854. Removing old owner icons when changing the owner and changing the icon at the same time.
Group edit action refactoring
Merge branch '1854-18-groupowner' into 1.8
Fixes #4933 - Adds plugin_id to GUID lookup map
Fixes #4927 - Removes obsolete commas in JS code for IE7 compatibility
JS views: enable syntax highlighting and add missing semicolons