$units in output method was using the wrong array
Fix for #608

`sortable` options were not saving as default.
Update README.md
Update README.txt
Merge branch 'master' of https://github.com/ReduxFramework/ReduxFramework
$value should be $cleanValue since it is not inside the loop
Reverting change
Merge pull request #691 from mharis/master

Fixing border field bug
Fix for issue #551.