SSDM-1166 open up 15.xx stage branch - allow building of stage 15.xx.x with...

SSDM-1166 open up 15.xx stage branch - allow building of stage 15.xx.x with build_resources/build.sh

SVN: 32818

build_resources/gradle/build_openbis.sh

@@ -48,6 +48,9 @@ for project in $PROJECTS; do
 	if [ "$BRANCH" == "trunk" ]
 	then
 		SVN_PATH="${project}/trunk"
+    elif [ "$BRANCH" == "stage" ]
+    then
+        SVN_PATH="openbis_all/branches/stage/15.xx.x/${project}"
 	elif [ "$BRANCH" == "sprint" ]
 	then
 		if [[ -z "$VERSION" ]]