Merge pull request #13 from onaio/master

backgrid changes
Merge pull request #14 from onaio/master

JS path and override fixes
Merge pull request #15 from onaio/master

Exports, aggregations
UK: Merge  'onaio/master'

* onaio/master: (32 commits)
  PLD: only require 2 values in geometry for lat and lng
  PLD: only install js test deps and run on 1 build
  PLD: add force option to instance save and use in migration
  Squashed 'script/monit/' content from commit 75931b3
  PLD: create db scripts folder and add load backup script
  PLD: instances replaces surveys
  PLD: correct migration sequence numbers
  PLD: order migrations
  PLD: correct model imports
  PLD: use instances from relation
  PLD: use xform geocoded submission count
  PLD: geocoded submission count from instances
  PLD: use instance to check for geopoints
  PLD: make point a property, fix lng is x
  PLD: use instance over parsed instance when building csv for bamboo
  PLD: add get_full_dict method to instance that returns all previous mongo dict entries
  PLD: use instance in KML export
  PLD: change name to match class
  PLD: check geometries exists before attempt to extract data
  PLD: build KML directly from instance
  ...
UK: specify string to use for empty values in csv exports, defaults to n\a
Merge pull request #136 from kobotoolbox/na-values

Specify string to use for empty values in csv exports, defaults to n\a