[refactor][s]: move get logic for DataView (and Account) to logic layer.
[#81][l]: add support for deleting TimeMaps - fixes #81.

* TimeMaps can now be deleted from your dashboard
* Delete = Move to trash (add state: 'deleted')
* API now has DELETE verb
* Have not done any of the extra stuff in the issue (e.g. renaming timemaps)

Misc

* views/base.html: add fontawesome 4.0
[refactor][xs]: tiny tweak so that error messages on create work.