Merge lp://qastaging/~chad.smith/lp2kanban/merge-kanban-cross-team-fixes into lp://qastaging/lp2kanban

The cross-team jenkins job (https://ci.lscape.net/job/kanban-cross-team/) is already running on lp:lp2kanban and it relies on configuration files maas.ini, juju.ini, charms.ini and server.ini which are already added to our lp:~landscape/landscape/lp2kanban-configs repo.

There are some missing config option changes needed to support those ini files which David originally made to the lp2kanban fork at lp:~landscape/lp2kanban/cross-team.

This cross team changes add the following support for configuration options:

**new_lanes**: the lane(s) into which cards at "New", "Confirmed" "Triaged" or "Incomplete"
                    bug statuses are moved
**done_lanes**: DROPPED in favor of the more granular done_fix_lanes and done_nofix_lanes

**done_fix_lanes**: the lane(s) into which bugs in "Fix Released" status are moved

**done_nofix_lanes**: the lane(s) into which bugs in "Opinion", "Invalid", "Won't Fix", "Expired"
                    bug statuses are move

This branch also changes lp2kanban to rename todo_lane to new_lane as they have the same intended behavior.

To support testing this branch, rev 9 of lp:~landscape/landscape/lp2kanban-configs adds these new lane config options to our kanban-sync's "sync.ini" file so existing lp2kanban can continue to use the old todo_lane and done_lane.

Unit tests were added to cover the changes to better describe and test new behavior.

To test:

# Either make this project
make configs
make credentials
make
make check
./bin/py ./src/lp2kanban/bugs2cards.py -c configs/sync.ini -b "Landscape 2016"

# Or Hijack jenkins kanban sync job and point the Repository URL to lp:~chad.smith/lp2kanban/merge-kanban-cross-team-fixes instead of lp:lp2kanban

https://ci.lscape.net/job/kanban-sync/configure

# Or stop the jenkins kanban-sync job and patch the existing checkout (which is refreshed each run anyway)
ssh <email address hidden>; sudo -u jenkins bash; cd /var/lib/jenkins/workspaces/kanban-sync; bzr merge lp:~chad.smith/lp2kanban/merge-kanban-cross-team-fixes; ./bin/py -c configs/sync.ini -b "Landscape 2016"