Get off off rails-assets

Just moving the things we currently use (and should drop in the ASAP) to vendor/assets

vendor/assets/javascripts/spectrum/i18n/jquery.spectrum-fa.js

@@ -0,0 +1,14 @@
+// Spectrum Colorpicker
+// Persian (fa) localization
+// https://github.com/bgrins/spectrum
+
+(function ( $ ) {
+
+    var localization = $.spectrum.localization["fa"] = {
+        cancelText: "لغو",
+        chooseText: "انتخاب"
+    };
+
+    $.extend($.fn.spectrum.defaults, localization);
+
+})( jQuery );