Mapfishapp/cswfilter

New syntax for metadata search (CSW search)

* 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 (handy for administrators)

GEOR.config.CSW_FILTER_PROPERTIES defaults to human-readable properties ['Title','AlternateTitle','OrganisationName','Subject'] and may be overriden in GEOR_custom.js, like this :

CSW_FILTER_PROPERTIES: ['AnyText']