Localizations according to flask.ext.babel standard mechanism
locales validation and remove duplication of en_US in settings
Check for default language corruption
commented code deleted
Fix typo
Make snapshots work again

Clicking on a revision now actually takes
you to the correct revision.  Also fixed
some presentation issues for clarity.
Clarify when worksheets are re-published
clarify collaborator button
Merge pull request #249 from kcrisman/collab

clarify collaborator button
Merge pull request #248 from kcrisman/republishnote

Clarify when worksheets are re-published
Merge pull request #247 from kcrisman/fixrevisions

Make snapshots work again
Fix doctests
Update Sagenb version to 0.11.0
Explicit Babel defaults removed
Add information about generating keys

We didn't say what `secure=True` does about keys, and given the likelihood of things like https://groups.google.com/forum/#!topic/sage-support/zglN_3QLCPo happening again in the future, it is a good idea to document this better.

HT to Jori Mäntysalo for this placement and essentially the wording.
Set platform speed to 8

This will enable rotating plots to maintain all their attributes, at the expense of some slowdown for very large plots on certain slower platforms.
Add jsmol to the allowed commands for public worksheets
Path name for live documentation jmol files, fixes #256
Merge pull request #257 from sagemath/3d_live_documentation

3d live documentation

Whitelist jsmol as a command and fix directory typo.  Closes #256
Remove superfluous if/then in template

We couldn't have gotten to this spot if this condition weren't already true from the previous if.