updated some dir paths, loading yaml
added tasks.py
merging
merging
merging
saving model, chart, map configs
Merge branch 'master' into celery

Conflicts:
	urbansim/server/urbansimd.py
Convert RegressionModel rsquared values to Python floats for YAML storage.
pvalues should be tvalues ;)
forgot to fix the test
turning to celery for simulations
Merge branch 'celery' of https://github.com/synthicity/urbansim into celery
running simulation in celery and returning model logs
Update servecli.py
import models from pythonpath
Merge pull request #28 from synthicity/celery

Celery
moving urbansimd to usui

It was decided that urbansimd should not live in urbansim, but should live with the website repository instead.  It brought in a number of dependencies that don't really apply to the general population of urbansim users.
Merge pull request #29 from synthicity/move-server

moving urbansimd to usui (deleting from urbansim)
Initial Sphinx organization.
Barebones pages for urbansim.models modules.