feat(*): adding a simple release script

Author: klieber

release.sh

@@ -0,0 +1,19 @@
+#!/usr/bin/bash
+
+releaseVersion=$1
+nextVersion=$2
+
+echo "creating release $releaseVersion" \
+  && mvn versions:set -DnewVersion=$releaseVersion \
+  && git add pom.xml */pom.xml \
+  && git commit -m "release $releaseVersion" \
+  && git tag -a $releaseVersion -m "release $releaseVersion" \
+  && echo "preparing for next release $nextVersion" \
+  && mvn versions:set -DnewVersion=$nextVersion-SNAPSHOT \
+  && git add pom.xml */pom.xml \
+  && git commit -m "prepare for development of $nextVersion" \
+  && echo "pushing changes" \
+  && git push upstream master:master \
+  && git push upstream $releaseVersion:$releaseVersion
+
+