* Fix date representation for default due date on manual invoice
Merge pull request #246 from iseppi/fix-invoice-due-date

Manual Invoice Default Due Date
 * Add version comments to all current alembic versions
Merge pull request #247 from iseppi/add-alembic-version-comments

Comments for alembic versions
Fulfilment Subsystem
 * Add new Fulfilment models, controllers, templates and alembic revision
 * Initial code in admin controller to populate fulfilment records
 * Code to generate boarding pass
 * Bump required sqlalchemy and alembic
Merge pull request #249 from iseppi/fulfilment-subsystem

Fulfilment Subsystem
Merge pull request #67 from zookeepr/master

Merge upstream to lca2013