[yaml mode] Add text/yaml MIME type

Author: BigBlueHat

mode/meta.js

@@ -157,7 +157,7 @@
     {name: "XML", mimes: ["application/xml", "text/xml"], mode: "xml", ext: ["xml", "xsl", "xsd"], alias: ["rss", "wsdl", "xsd"]},
     {name: "XQuery", mime: "application/xquery", mode: "xquery", ext: ["xy", "xquery"]},
     {name: "Yacas", mime: "text/x-yacas", mode: "yacas", ext: ["ys"]},
-    {name: "YAML", mime: "text/x-yaml", mode: "yaml", ext: ["yaml", "yml"], alias: ["yml"]},
+    {name: "YAML", mimes: ["text/x-yaml", "text/yaml"], mode: "yaml", ext: ["yaml", "yml"], alias: ["yml"]},
     {name: "Z80", mime: "text/x-z80", mode: "z80", ext: ["z80"]},
     {name: "mscgen", mime: "text/x-mscgen", mode: "mscgen", ext: ["mscgen", "mscin", "msc"]},
     {name: "xu", mime: "text/x-xu", mode: "mscgen", ext: ["xu"]},

mode/yaml/yaml.js

@@ -113,5 +113,6 @@ CodeMirror.defineMode("yaml", function() {
 });
 
 CodeMirror.defineMIME("text/x-yaml", "yaml");
+CodeMirror.defineMIME("text/yaml", "yaml");
 
 });