Added registration/login jsfiddle, formatted so it can be loaded directly from jsfiddle. Requires jQuery 1.8.3

Conflicts:
	tests/rest/test_presence.py
	tests/rest/test_rooms.py
	tests/utils.py

on method calls to be made later

Perform the 'REST'-level tests of Presence against the real Presence handler as well, mocking out the datastore beneath it

Rename MockHttpServer to MockHttpResource as it stands for one server resource rather than an entire server

Reduce the amount of incredibly spammy stack traces. Expected errors (e.g. SynapseErrors) shouldn't have their full trace logged every time. Don't send responses to disconnected requests.

Use $location.url to open the user profile page. The user page URL is then the one expected: http://127.0.0.1:8000/#/user/@Manu:localhost:8080 insteaf of
http://127.0.0.1:8000/#/user/@Manu:localhost:8080#public:localhost:8080