Update gn submodule.
Add a mention to the user login in Change Password mail
Merge pull request #318 from georchestra/issue315

Add a mention to the user login in Change Password mail
new parameter CSW_FILTER_PROPERTIES to restrict full text search to some queryable properties

?word performs an AnyText search
release notes updated with GN stuff
Update RELEASE_NOTES.md
Update gn submodule.
mapfishapp: fixed legend label not appearing when only one class is available
merge stable
Update RELEASE_NOTES.md
wilcards allowed for the user
=> falls back to strict search
Merge branch 'master' into mapfishapp/cswfilter
Merge branch 'master' into mapfishapp/cswfilter
after discussion (thanks list) and testing :

* word  : search for word* on properties defined by GEOR.config.CSW_FILTER_PROPERTIES
* #word : search for word* in Subjects (keywords)
* @word : search for word* in OrganisationNames
* -word : pattern *word* excluded
* ?word : search for word* in AnyText