Cleanups
Cleanups on initdb

Move create_default_db() to initdb(). This reduces code.

Also updated transaction management code to avoid using private transaction
API deprecated in Django 1.6.
Bundle wikipedia.js into editor bundle

Bundle wikipedia.js into editor. One less HTTP request when loading translator UI.
Change submodule to use https instead of git://

git:// is causing trouble with possible firewalls. Us, mozilla, for example
can't check out repos over git:// but we can over https://

Remember to run `git submodule sync` before re-running
`git submodule update --recursive`