add local geoserver if is missing
check on the url existence rather than the entire source
handle any 403 by asking login and redirect back on success
Removed try/except blocks from geonode_is_up
Merge pull request #894 from simod/issue-671

add local geoserver if is missing
Fixed typo
Merge branch 'master' of github.com:GeoNode/geonode
update the integration test to reflect the new redirect to the login page
Added check in paver targetting python 2.7 for building geonode (this does not affect running)
Merge pull request #896 from simod/issue-782

handle any 403 by asking login and redirect back on success
Metadata xml validation for date objects that are None
bump pycsw
Merge pull request #901 from jmwenda/metadataissue

Metadata xml validation for date objects that are None