Patch Mithril with a bidi attribute

Enables quick bidirectional bindings. So instead of this:

<input value={prop()} oninput={m.withAttr('value', prop)}/>

... we can do this:

<input bidi={prop}/>

framework/core/js/admin/Gulpfile.js

@@ -10,6 +10,7 @@ gulp({
     bowerDir + '/es6-micro-loader/dist/system-polyfill.js',
 
     bowerDir + '/mithril/mithril.js',
+    bowerDir + '/m.attrs.bidi/bidi.js',
     bowerDir + '/jquery/dist/jquery.js',
     bowerDir + '/moment/moment.js',
 

framework/core/js/bower.json

@@ -10,6 +10,7 @@
     "mithril": "lhorie/mithril.js#next",
     "es6-micro-loader": "caridy/es6-micro-loader#v0.2.1",
     "fastclick": "~1.0.6",
-    "autolink": "*"
+    "autolink": "*",
+    "m.attrs.bidi": "tobscure/m.attrs.bidi"
   }
 }

framework/core/js/forum/Gulpfile.js

@@ -10,6 +10,7 @@ gulp({
     bowerDir + '/es6-micro-loader/dist/system-polyfill.js',
 
     bowerDir + '/mithril/mithril.js',
+    bowerDir + '/m.attrs.bidi/bidi.js',
     bowerDir + '/jquery/dist/jquery.js',
     bowerDir + '/jquery.hotkeys/jquery.hotkeys.js',
     bowerDir + '/color-thief/js/color-thief.js',

framework/core/js/lib/utils/patchMithril.js

@@ -8,8 +8,14 @@ export default function patchMithril(global) {
       return comp.component(...args);
     }
 
-    return mo.apply(this, arguments);
-  }
+    const node = mo.apply(this, arguments);
+
+    if (node.attrs.bidi) {
+      m.bidi(node, node.attrs.bidi);
+    }
+
+    return node;
+  };
 
   Object.keys(mo).forEach(key => m[key] = mo[key]);