message: updating the git ignore file
diff: # ignore these folders
  build/
  **/bin/
  +
  +
  +# Created by .ignore support plugin (hsz.mobi)
  +### Java template
  +*.class
  +
  +# Mobile Tools for Java (J2ME)
  +.mtj.tmp/
  +
  +# Package Files #
  +*.war
  +*.ear
  +
  +# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
  +hs_err_pid*
  +
  +#idea created files
  +.idea/
  +./java/.idea/
  +./cpp/.idea/
  +*.iml
  +
  +#sphinx created files
  +docs/_build
  +
  +# ignore the tmp dir
  +tmp/
  