CMGWT-11: update java version to 1.7 (should have been in geomajas parent)
CMGWT-11: update java version to 1.7 (should have been in geomajas parent)

geomajas/geomajas-project-codemirror-gwt,geomajas/geomajas-project-codemirror-gwt,geomajas/geomajas-project-codemirror-gwt