Media view

I've checked in the main gui portion of the changes for displaying media
into the "skyjunky" branch.and I'm looking for feedback.
It mostly has the same functionality as before with the new look and feel.

The remaining list of things to do before I merge back into the main branch
are:
Put the media in the database (including auotmatic conversion from old
storage into new for existing users).
Add config option to bypass image preview window.
Skip image preview if image dimensions are already OK.
Add option to move media from one origin to another.
Add phone profile query for origins so full origin list is displayed
Add some stats to media widget.

Simon