Merge branch 'release/0.3.0' into develop

* release/0.3.0:
  Bump version number
  A little extra documentation
  Update CHANGELOG and README for updates
  Add options page screenshot
  Properly migrate XML -> Markup
  Add new screenshots
Forgot to minify JavaScripts
Merge branch 'refs/heads/develop'

* refs/heads/develop:
  Forgot to minify JavaScripts