Added Foreman gem.  Run Diaspora using `foreman start` (will start everything except mySQL.  Passing in a -p flag will let you specifiy the port.  Also: I took single_process_mode out of app config and made it an environment variable.  If you want to boot a lightweight server, run `SINGLE_PROCESS=true rails s`.

Moved post/comment text collapsing into respective widgets; removed from stream.js.  Removed an unused function in stream.js (image hotlinking).

Use explicit parameters instead of request format to determine whether we render a remote or non-remote form in aspects#new.
Facebox needs to get back a text/html response. We were using text/javascript to indicate that we wanted a remote form and text/html to indicate we wanted a non-remote form. The trouble is, if we request with text/javascript then that is the format we get back. It doesn't really make sense to use formats that way anyway, so I changed it to an explicit parameter. This had the nice side effect of simplifying our new-aspect views.

condense asset declarations; include all js in widget and helper directories (this is what we've already been doing)

Merge branch '1305-full-markdown' of https://github.com/brianwisti/diaspora into brianwisti-1305-full-markdown

Conflicts:
	Gemfile.lock

fix retractions, fix likes, backfill likes widget tests, remove typo from jasmine.yml, remove unneeded js files
require confirmation for comments in js, get rid of rails helper

Fixed live stream

Fix #1486 profile update was crashing with invalid birthday date

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