Merge branch 'develop' into feature/alt-mapping
Mapping Fixes to deal with bug on page transition

We are now binding to data-role="page":last so that the event is fired
in the context of the last page. This prevents a stale reference
problem where $('.map_container') was referencing the first pages
.map_container.
change map container to percentage width
added tour stop media model and migration. also added PIL as a common dependency due to the imagefield requirement
added media to the admin panel as well as specified media root and url based on the BASE_DIR prop in base settings
Merge branch 'feature/media' into develop