add map_sdk.js and sdk_header.html template to make it easier to integrate OpenGeo Suite SDK apps in GeoNode
Merge pull request #817 from bartvde/sdk_files

add map_sdk.js and sdk_header.html template to make it easier to integra...
get rid of ext in documents upload
check if the file exists before putting the url (mostly for tests)
Comment out notifications until problems are resolved
Remove unneeded smoke tests
Fix _split_query import
Completely remove old layers/maps search implementation
Use consistent layer terminology in tests/smoke.py
Merge branch 'master' of github.com:GeoNode/geonode
Make sure failing smoke tests fail the build
Merge branch 'master' of github.com:GeoNode/geonode into dev

Conflicts:
	geonode/layers/views.py
	geonode/tests/smoke.py