Upgrade generated project dependencies

* Django: 1.6.1 -> 1.6.2
* MarkupSafe: 0.18 -> 0.19
* dj-database-url: 0.2.2 -> 0.3.0
* django-debug-toolbar: 1.0 -> 1.0.1
* sqlparse: 0.1.10 -> 0.1.11
Rename requirements heroku.txt -> base_deploy.txt