Migrate to django 1.7#26

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edelvalle wants to merge 4 commits intoInviteBox:masterfrom

edelvalle:migrate-to-django-1.7

Commits on Oct 8, 2014

Code formating.
Eddy Ernesto del Valle Pino
committed
Remove unused imports.
Eddy Ernesto del Valle Pino
committed
Use json insted of simplejson.
Eddy Ernesto del Valle Pino
committed
Make imports in urls work again.
Eddy Ernesto del Valle Pino
committed