Scheduled job to empty trashcans.

- Install:
	- pip install django-celery
	- pip install celery
- Empties trashcans older than 1 week
- Empty trashes of Products and SellerLocations
- Job is setup to run every week on Saturday. (It can be changed)
Merge branch 'master' of github.com:rpanjwani/beLocal into cron-jobs

* 'master' of github.com:rpanjwani/beLocal: (68 commits)
  Fixed ng-repeat for vendor cards.
  Removing fixed map.
  Pushing initial masonry fixes
  Quick fix for market like button
  fixed the search autocomplete issue with regards to vendor active status
  Added the ability to specify container class
  Created a (somewhat) hacky directive to fix maps
  altered protractor test to newest version of beLocal
  Fixed minor typos in markets script.
  Fixed CSS typo
  Updated masonry timeout
  Added the proper size and colour to another nav bar font that I accidentally deleted earlier
  Restored the proper nav colours that I managed to delete earlier
  added new image for slash page
  Added 2 new markets to the updateMarkets script and edited some of the markets images
  Added placeholder message for null descriptions.
  Changed the way we display location information on the vendor cards
  Fixed fuzzy bouncing
  Added an alert for inactive vendors.
  Fixed the like buttons & displayed the markets webpage on their details page
  ...
Add settings for celery jobs

- Sync Database:
	  python manage.py syncdb
- To start celery schedular:
		python manage.py celeryd -B -l DEBUG
Scheduled job for deleting expired seller locations.
Merge branch 'master' of github.com:rpanjwani/beLocal into cron-jobs

* 'master' of github.com:rpanjwani/beLocal: (74 commits)
  Added as featured on section to about us page.
  Fixed navbar on manage page
  Fixed login on small screens.
  Added clarification for market dropdown.
  Clicking profile image now opens edit profile modal
  added photo for new market]
  added new markets
  Fixed bug causing duplicate markets.
  uploaded new profile placeholder
  Updated strings for social media button
  Displayed information for market locations in the add location modal
  Added error message for no valid account
  Minor UI fixes
  changed to match file name casing - #64.
  Fixed Facebook Login workflow
  Removed merge comment.
  Added link to startup-programming.com
  Removed debug messages
  Removed old registration workflow
  Added profile placeholder image
  ...
Add cron job to delete un-used images.

- add cron job for images of product, vendor, market.
- add signal to delete image files.
bug fix on cron jobs.
Merge branch 'master' of github.com:rpanjwani/beLocal into cron-jobs

* 'master' of github.com:rpanjwani/beLocal:
  removed vendor street address from search index #63
  Updated LuxuryBC link.
Removed debug statements
Merge branch 'master' into cron-jobs

Conflicts:
	src/client/app/views/details.html
	src/client/app/views/seller.html
Merge pull request #72 from rpanjwani/cron-jobs

These look great! Plus they're going to save us a ton of server storage :P