[GEOS-4014] servlet-api-2.4.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2.
GEOS-5862 - GSUSER variable not available in REST requests
Merge branch '2.2.x' of https://github.com/geoserver/geoserver into 2.2.x-cached-datastore
improve gui