Style update for DM compose page.
Code style fixes. Changing quote type.
Code refactor to remove duplicated code.
More changed quote marks.
Added NSFW option for media.

This commit implements r512 from the official Google Code project.
It includes some code style fixes.
Added support for the NSFW setting in the Embedly file.
Fixed bug with DMs introduced by code refactoring.
Merge branch 'nsfw'
Added "retweeted at" time information.
Implemented r513 from the Google Code project.

This revision supposedly lets you set whether or not the user should see
retweets from other users in the main user's home timeline.
Code style fix.

The lack of consistency in simple code style standards is astounding.
Lots more code style fixes.
Code style fixes. Mostly quotation marks.
More code style fixes. Mostly quotes.
Code style fixes.