fixed bug in MGRAST for borders
patches to GBIF and MGRAST for specific map type
added ignore to WorldClimQuery
Revert "added ignore to WorldClimQuery"

This reverts commit fb86fb2564e65842cc964c0aad3b3e924fefd034.
completed changes discussed with Rob

more user information for combining location layers. A warning has also
been created when a user wants to delete location layers, as this action
currently causes odd behaviour in some plugins.