Enlarging too small CharFields of the coverage RangeType model.
Fixing WMS GetCapabilities(). 

The WMS GetCapabilities() request was failing for a clean EOxServer install with no coverage or collection installed.
Merge remote branch 'upstream/master'
Minor WMS GetCapabilities() clean-up.
Fixing message_user() Django 1.4 compatibility.
CLI: removing replaced legacy commands.
CLI: adding new dataset series mamangement commands.
CLI: adding new dataset mamangement commands.