Added moment-jdateformatparser plugin to documentation and created jdateformatparser.md
Merge branch 'jdateformatparser' of github.com:MadMG/momentjs.com into MadMG-jdateformatparser

# By MadMG
# Via MadMG
* 'jdateformatparser' of github.com:MadMG/momentjs.com:
  Added moment-jdateformatparser plugin to documentation and created jdateformatparser.md