Added UTF-8 encoding to the str class on the Style model.
moved DB_DATASTORE parameters into DATABASES dictionary; turn on/off through OGC_SERVER DATASTORE option
Merge pull request #1055 from Applied-GeoSolutions/db_datastore

moved DB_DATASTORE parameters into DATABASES dictionary
Use more verbosity in the install_sample_data fab task
Fixed OGC_SERVER context variables that were being overwritten by default
Merge remote-tracking branch 'upstream/master'