Always run acceptance tests

I can't trust Maven to run the tests with -Pacceptance. At least
half of my attempts produced no tests run. This is of zero value to
me as a build system, but our contributors have determined Gerrit
will remain stuck with Maven.

Stick contributors with the burden of running the acceptance tests
by default. This way we know the tests are executed.

Change-Id: I678e42651efc162f66929c605247583d7ef6cc8a

gerrit-acceptance-tests/pom.xml

@@ -115,6 +115,11 @@ limitations under the License.
   <profiles>
     <profile>
       <id>acceptance</id>
+      <activation>
+        <property>
+          <name>!gerrit.acceptance-tests.skip</name>
+        </property>
+      </activation>
       <build>
         <plugins>
           <plugin>

tools/release.sh

@@ -1,6 +1,6 @@
 #!/bin/sh
 
-flags=-Pacceptance
+flags=
 
 while [ $# -gt 0 ]
 do
@@ -13,8 +13,13 @@ do
 		flags="$flags -Dgerrit.plugins.skip=true"
 		shift
 		;;
+	--no-tests|--without-tests)
+		flags="$flags -Dgerrit.acceptance-tests.skip=true"
+		flags="$flags -Dmaven.tests.skip=true"
+		shift
+		;;
 	*)
-		echo >&2 "usage: $0 [--no-documentation] [--no-plugins]"
+		echo >&2 "usage: $0 [--no-documentation] [--no-plugins] [--no-tests]"
 		exit 1
 	esac
 done
@@ -29,7 +34,7 @@ then
 fi
 
 ./tools/version.sh --release &&
-mvn clean package $flags
+mvn clean package verify $flags
 rc=$?
 ./tools/version.sh --reset