This was implemented by Matt Petro of the University of Wisconsin - Madison Engineering
School and Math Department. Many thanks. Reviewed by and committed by Tim Hunt.
This adds a new Overrides tab to the UI, with sub-tabs Group overrides and User overrides.
Each of those lists all the overrides that currently exist, and lets you manage them and
create more.
When a quiz is being attempted, the override that applies to the current user is combined
with the current quiz settings loaded from the quiz table (normally called $quiz).
If there are both user and group overrides, then just the specific user override is used (more specific).
If the user is in several groups, then the overrides are combined to give the most permissive set of options.
There is one new database table quiz_overrides, to store the overrides.
Also included in this patch the ability to switch the dock from the left to right side of the screen.
Altered js_object_init to deliver Y like js_init_call does now.
Several minor tweaks made to the dock and navigation as well at the same time.
The following changes have been made in this commit:
1. Renamed the side bar thing to dock, this is consistent through all code/css now.
2. Converted everything to YUI 3 except the panel which docked items are shown in, this iwll be converted once YUI 3 overlay is no longer beta.
3 Redisigned the dock, all blocks can now make use of it, and theme code within JS can override it so they can make it look as they want.
More changes are coming
