remove thumbnails if no longer needed
Allow regenerating site secret
PRNG replace Drupal's with George Argyros'
code style
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