Added unused fields in sources/destinations for migrations
Removed some unmigrated fields from source files
Merge pull request #47 from eugenst/refactor

Added unused fields in sources/destinations for migrations
refs #2575 - Commited the support modules - tmgmt and rules
refs #2575 - Enable modules during install/update
refs #2575 - Link to documentation for tmgmt
refs #2575 - Added local translator as only translator for now
refs #2575 - Enable the Checkout button for entity translation
refs #2616: Enabled extra modules for translation management
refs #2575 - Enable modules during install/update