Update celery dependency
pep8
Refactor places tasks

No blocking .get() call in a task, using a chain for everything; also encapsulates exceptiosn for every task
pep8
Moved back index page to 200 documents
Changed ordering of importers
Removed OxPoints descendants importer from import_all
Merge pull request #69 from ox-it/upgrade-celery

Places tasks update
Merge branch 'master' into oxpoints-courses-data

* master:
  Removed OxPoints descendants importer from import_all
  Changed ordering of importers
  Moved back index page to 200 documents
  pep8
  Refactor places tasks
  pep8
  Update celery dependency

Conflicts:
	moxie/places/tasks.py