- icons for the ribbon instead of words

• added
  src/moplay/images/chart.png
• added
  src/moplay/images/chart_white.png
• added
  src/moplay/images/code.png
• added
  src/moplay/images/code_white.png
• added
  src/moplay/images/download.png
• added
  src/moplay/images/download_white.png
• added
  src/moplay/images/link.png
• added
  src/moplay/images/link_white.png
• added
  src/moplay/images/open.png
• added
  src/moplay/images/open_white.png
• added
  src/moplay/images/play.png
• added
  src/moplay/images/play_white.png
• added
  src/moplay/images/save.png
• added
  src/moplay/images/save_white.png
• modified
  src/moplay/js/multiobj.js
• modified
  src/moplay/stylesheets/main.css
• modified
  src/moplay/stylesheets/modal.css
• modified
  src/moplay/templates/index.html