Added new options info.

Added info for the 'Branch Filter' and 'Restrict to Last Commit' options.
Kanbanize filter options test

A test for the new filtering options of the kanbanize service is added.
Adding filter options for the Kanbanize service

The Kanbanize service will skip branches that are not included in the whitelist and tell Kanbanize whether to inspect only the last commit or all commits.
Test the Kanbanize service restrict_to_branch

Check that the restrict_to_branch option is working correctly.
Merge pull request #995 from DanielDraganov/master

Add filtering to the Kanbanize Service