WIP: Added posibility of setting custom cards in control panel
Close dialog on enter key; JSLint fixes
Layout improvements for adding of new widgets feature
Lint fixes
Updated eea.progressbar with the following changes:

- Added posibility to delete extra fields
- Added reordering support to the extra fields
Linting fixes
Treat case where the widget's condition could not be evaluated
Changed test for callable
Merge pull request #3 from olimpiurob/master

Added possibility to add custom cards via eea.progressbar control panel