Add auto declaration sample to demo
Switch to the correct language in stead of translating to the currently selected
Add starter to demo
For unknown extensions assume mscgen
add selected sample to ga tag
removed duplicate link. updated link to readme.mscin
added polyfill for String.endsWith (only supported in ff)

Found on: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/endsWith
merge for gh-pages build
build