Reinitialize room when creating a RoomController so that we start off with a clean slate, as it expects/

Use $location.url instead of $location.path to get clean page URL without hash arguments of the previous page.
This happpens with room URL like http://127.0.0.1:8080/matrix/client/#/room/#public:localhost. The second hash part is transferred to the next page when using $location.path.

Make the content repo work with in daemon mode. Return the full url on upload. Update the webclient to use new content repo api.

resizeImage: generate an image in the format of the original image. (Tested with tranparent PNG, transparent GIF, BMP, JPEG)

rename autoComplete directive as tabComplete to avoid confusion with the autocomplete html attribute