first stab at populating month view.

first stab at populating month view.

To do this, semi-implemented caching by porting some of kronolith.js
cache code to jquery. Cache still isn't used right now other than
as a container to hold current month view, i.e. it's not reused.

Still todo: Reuse cache data, validate ajax response for view/request.
Tweak month view css
Load *initial* month view data (currently it's only triggered after the first month change).