fixes for tab rendering
Fixes #4240 not showing draft blog posts in group module
Refs #4239 improved the documentation on ElggBatch for the limit option
Refs #4239 fixed upgrade scripts with bad limits
Fixes #4179 not setting excerpt if none set
added access override to the forum upgrade
fixes spacing. add a note on text/title
Fixes #3716 setting the language when registering new users
Fixes #682 not deleting metadata when update, metadata event handlers return false
Fixes #683 not deleting annotation when event handlers return false on an update
Fixes #4069 reusing the previous ElggObject for external pages
Fixes #1922 can now delete invites to invisible groups
Fixes #2074 adds group search
Fixes #4186 restricting the drag handle for widgets
Fixes #3751 adds a group blog archive page
Refs #4009 registering the walled garden css and js on every request
Fixes #3272 added button to revert avatar
Fixes #4253 added backward compatibility for blog read url
Fixes #4248 fixed friend river text
Fixes #4239 rerun corrected blog status upgrade