Merge pull request #13 from onaio/master

backgrid changes
Merge pull request #14 from onaio/master

JS path and override fixes
PLD: consolidate formhub and main apps
PLD: remove formhub from tests
Merge pull request #134 from onaio/remove-formhub-app

Remove formhub app
PLD: add geodjango and use postgis db engine
PLD: add geom field for #110
PLD: add geospatial libs, move to install file, #110
PLD: quieter install
PLD: install db and create extension for postgis #110
PLD: add postgis install to ubuntu build per instructions for 9.3
PLD: add set geom helper on instance save #110
PLD: method for get all geopoints #110
PLD: migration to resave and add geoms #110
PLD: do not store the z dimension, not supported out-of-the-box
PLD organize and add geolocation lat, lng from geom to json
PLD: start of arch install script
PLD: build KML directly from instance
PLD: check geometries exists before attempt to extract data
PLD: change name to match class