Training updated

The training node was updated with the new caching gridviewer and the listed schemas were also updated.

In gridviewer, Dallas has been disabled for the time being because it seems to be acting rather flakey (will load fine for a half hour, and then times out). If anything it means I need to work in a good timer function to abandon a load and notify the user after a set amount of time.

Otherwise, gridviewer next week will be given some UI tweaks. I am hoping to get better server allow/disallow logic, multiple loads on one map (with different pushpins depending on the load), and autopopulated classifier/indicator drop-downs that don't require server hits.

Cheers everyone, have a good weekend,
Peter