CAPX-3 Add views field handler to display an Importer's Mapper as a link.

CAPX-3: Added handler for configuration metadata.

CAPX-3: Fixed metadata rendering.

CAPX-3: Added keys to overview view of importers
Merge pull request #21 from Trellon/CAPX-3

CAPX-3
CAPX-17 | added create new mapping button and help text. Broke out pages into their own file

CAPX-17 | Cleanup of the .info file and require_once s

CAPX-17 | Fixes and improvements

CAPX-17 | Fixed callback functions and some bugs

CAPX-17 | Removed global variables for function params

CAPX-17 | misc feedback and translation fixes
Merge pull request #16 from sherakama/capx-17

CAPX-17 - New Mapping Button
CAPX-57: Added logging and user notification for situations when mapped field was removed from bundle/system.