Make .asy files editable when uploaded

services/web/app/coffee/Features/Uploads/FileTypeManager.coffee

@@ -3,7 +3,7 @@ Path = require("path")
 
 module.exports = FileTypeManager =
 	TEXT_EXTENSIONS : [
-		"tex", "latex", "sty", "cls", "bst", "bib", "bibtex", "txt", "tikz", "rtex", "md"
+		"tex", "latex", "sty", "cls", "bst", "bib", "bibtex", "txt", "tikz", "rtex", "md", "asy"
 	]
 
 	IGNORE_EXTENSIONS : [