Merge branch 'stable-2.15' into stable-2.16

* stable-2.15:
  Expose Gerrit's GWT client library in the plugin API
  Replace usage of Iterables.limit with Java 8 Stream API
  Follow up to "Adapt gerrit.sh script to work on Alpine Linux"

Change-Id: If66c0dd7f912e4551a6855c3cf299ed2586873dc

resources/com/google/gerrit/pgm/init/gerrit.sh

@@ -63,7 +63,7 @@ test $# -gt 0 || usage
 running() {
   test -f $1 || return 1
   PID=`cat $1`
-  ps -o pid | grep -w $PID >/dev/null 2>/dev/null || return 1
+  ps ax -o pid | grep -w $PID >/dev/null 2>/dev/null || return 1
   return 0
 }