Production environment adjustment.
Merge remote-tracking branch 'avian2/fix-rain-level'
Merge remote-tracking branch 'avian2/make-white-transparent'

Conflicts:
	arsoapi/views.py
Merge remote-tracking branch 'zejn/master'

Conflicts:
	arsoapi/views.py
Add map align helper KML at radar.kml?align=1
Show alignment map in higher resolution.
Add radar image format version detection.
Process radar image according to detected format.

Note: adds "format_id" integer field to RadarPadavin model.
Skip aladin test if data files missing.
Add test for filter_radar()
Always add background color as 0 mmph.
Merge branch 'map-align-helper'
Merge branch 'versioned-radar-images'