improved error reporting
set version to 0.4
added checking and warning for duplicated layer names
fixed issue when uploading style when sld file exist in server and hasn't been purged

This should eventually be passed to gsconfig
removing 'social enterprise' from theme
better error messaging when trying to import raster layer into postgis
fixed issue with "create store from layer" operation.

Function had been renamed and it was being called by old name
improved pavemet task to avoid adding test files to package. Removed package.py script