remove thumbnails if no longer needed
Fixes #6030 - Hide group bookmarklet from non-members
Merge pull request #6195 from juho-jaakkola/group_bookmarklet

Fixes #6030 - Hide group bookmarklet from non-members
Allow regenerating site secret
PRNG replace Drupal's with George Argyros'
code style
Upgrade htmLawed to 1.1.16
Merge pull request #6201 from sembrestels/htmlawed-update

Upgrade htmLawed to 1.1.16
Fixing permissions changes from #6201
Removes border-radius from radios/checkboxes
Merge pull request #6164 from jdalsem/file-remove-thumbs

Fixes #6162 - Remove file thumbnails if no longer needed
Allow regenerating site secret
Make sure new lang key available during upgrade
Code style fixes in ElggCrypto
Fix #6238 Return blank arrays 

I committed this simple change to return the empty array rather than false for empty settings result for ElggPlugin::getAllSettings and getAllUsersSettings. Put this into 1.8 branch.
Handle case if get_user_notification_settings() returns false
Merge pull request #6250 from edfactor/patch-1

Makes sure plugin settings functions return arrays
Fixes #6012: Gets correct client IP behind proxy (1.8)
Checks X-Real-Ip header as well when determining client IP
Code style fixes for recent PR