Update pom.xml to point to new distribution maven repo.
Update pom.xml to point to new distribution maven repo.

marcusthebrown/geogig,jodygarnett/GeoGig,jodygarnett/GeoGig,mtCarto/geogig,marcusthebrown/geogig,jodygarnett/GeoGig,jdgarrett/geogig,mtCarto/geogig,jdgarrett/geogig,mtCarto/geogig,jdgarrett/geogig,marcusthebrown/geogig