Checkpoint.
* Got fonts working cross platform by only using SVG. This will change
with the new webkit engine when Tide 1.4 is released.
* Use the Tide API accessors for cross-window data.
* Make the ThingFish server object an observable, so models and their
URI bases can be changed easily.
* Add options for saving window state and position.
* Contextual menu updates/tests for later.
