message: Fix check for changelog version
  We check if there is a new version if merging develop to master.
  Since we changed the changelog format the check has to be adjusted as well.
diff: @@ -41,7 +41,7 @@ if [[ ${TRAVIS_BRANCH} == "master" ]]; then
  echo "+ Pull Request from ${TRAVIS_PULL_REQUEST_BRANCH} to ${TRAVIS_BRANCH}"
  curl --silent "https://raw.githubusercontent.com/geli-lms/geli/${TRAVIS_BRANCH}/CHANGELOG.md" \
  | diff CHANGELOG.md - \
  - | grep -P '^< ## \[\[\d{1,3}\.\d{1,3}\.\d{1,3}\].*\] - \d{4}-\d{2}-\d{2} - .{10,}' - -q
  + | grep -P '^< ## \[\d{1,3}\.\d{1,3}\.\d{1,3}\].* - \d{4}-\d{2}-\d{2} - .{10,}' - -q
  RESULT=$?;
  if [[ ${RESULT} -eq 0 ]]; then
  