Merge pull request #604 from htrex/master

fix for missing line-height tooltip
Fixes for language translations. Issue #603.
Let me know if Redux is a plugin or not.
Fix for issue #602.
Fix for issue #605.
Trying to get continuous deploy for the demo going.
Force rebuild.
Another attempt.
And trying again.
Forgot to specify an app.
Fix to change unit to units if a user made that mistake.
Fix for issue #609.
Fix for #613
Fix for issue #614.
Example fix for issues: #610 and #606.
Fix for issue #566 & #545.
Update field_group.php

For some reason the change which was made 5 days ago got lost and throws up an invalid foreach() statement. To replicate grab files from master and view the General Options page in the sample-config.php
Merge pull request #617 from CraigPearson/patch-1

Update field_group.php
Added not_empty validation for issue #625.
CSS not pushed. OOps.