exclude the group from groupProfile in admin
Added installation guide for GDAL in a virtual environment
Cache map and layer configurations on a per-user basis
Disable/turn off maplayer records that user does not have permission to view
Merge pull request #1553 from gamesbook/devs

Added installation guide for GDAL in a virtual environment
Updated installation guide for GDAL
Merge pull request #1555 from gamesbook/dev2

Updated developer installation guide
Merge remote-tracking branch 'origin/master' into cache
Handle local vs remote use case
fixes 1538
Merge pull request #1556 from nathanhilbert/wingdal1538

Fixes windows gdal issue.  Fixes #1538.
Some refactoring
Merge branch 'master' into cache
Get rid of debug version
Merge pull request #1557 from mbertrand/cache

Cache map and layer configurations
fixes #1559
Merge branch 'master' of https://github.com/GeoNode/geonode