Update lexers from Pygments
added emberscript and provided sample
added coffeescript lexer for emberscript
Added Adventure Game Studio (AGS) Script language definition and samples.
Raked samples file with AGS Script.
Merge pull request #1465 from edmundito/master

Added AGS (Adventure Game Studio) Script
Merge pull request #1394 from grindhold/master

EmberScript support
Use Pygments Pan lexer

The upstream pygments patches seem to have landed at GitHub as Pan code blocks
are being correctly highlighted, we should extend this to files in repositories as well.
Merge pull request #1470 from jrha/pan_language

Use Pygments Pan lexer
Add APL to recognized languages
Merge pull request #1308 from pchaigno/new-lexers

Add lexers from Pygments
Merge pull request #1474 from StoneCypher/AddAplToRecognizedLanguages

Add APL to recognized languages
Samples update
Add F# sample.  Add Forth extension .fs.
Update samples.json.