package: add Git configuration also to GLTests Jenkins configuration.

So we have nice changelogs from build to build. We now need to run the
tests sequentially, because the building instances would try to access
the git repository all at once.

package/ci/jenkins-gltests.xml

@@ -10,7 +10,27 @@
   </logRotator>
   <keepDependencies>false</keepDependencies>
   <properties/>
-  <scm class="hudson.scm.NullSCM"/>
+  <scm class="hudson.plugins.git.GitSCM" plugin="git@2.0">
+    <configVersion>2</configVersion>
+    <userRemoteConfigs>
+      <hudson.plugins.git.UserRemoteConfig>
+        <url>git://github.com/mosra/magnum.git</url>
+      </hudson.plugins.git.UserRemoteConfig>
+    </userRemoteConfigs>
+    <branches>
+      <hudson.plugins.git.BranchSpec>
+        <name>*/master</name>
+      </hudson.plugins.git.BranchSpec>
+    </branches>
+    <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
+    <submoduleCfg class="list"/>
+    <extensions>
+      <hudson.plugins.git.extensions.impl.CloneOption>
+        <shallow>true</shallow>
+        <reference></reference>
+      </hudson.plugins.git.extensions.impl.CloneOption>
+    </extensions>
+  </scm>
   <canRoam>true</canRoam>
   <disabled>false</disabled>
   <blockBuildWhenDownstreamBuilding>false</blockBuildWhenDownstreamBuilding>
@@ -74,7 +94,7 @@ ctest --output-on-failure -R GLTest || true
   </publishers>
   <buildWrappers/>
   <executionStrategy class="hudson.matrix.DefaultMatrixExecutionStrategyImpl">
-    <runSequentially>false</runSequentially>
+    <runSequentially>true</runSequentially>
     <touchStoneCombinationFilter>
 <![CDATA[
 compiler == "g++" && libraries == "dynamic" && compatibility == "deprecated" && gl == "desktop"