Fix Issue #213 Get JAVA_OPTS, JENKIS_OPTS and arguments working

With the right quoting
diff --git a/jenkins.sh b/jenkins.sh
index dd28123..26768e9 100755
--- a/jenkins.sh
+++ b/jenkins.sh
@@ -29,7 +29,7 @@
 
 # if `docker run` first argument start with `--` the user is passing jenkins launcher arguments
 if [[ $# -lt 1 ]] || [[ "$1" == "--"* ]]; then
-  exec java $JAVA_OPTS -jar /usr/share/jenkins/jenkins.war $JENKINS_OPTS "$@"
+  eval "exec java $JAVA_OPTS -jar /usr/share/jenkins/jenkins.war $JENKINS_OPTS \"\$@\""
 fi
 
 # As argument is not jenkins, assume user want to run his own process, for sample a `bash` shell to explore this image