Implement configuration option for setting a data attribute prefix. [Closes #4]

@@ -60,11 +60,23 @@
 
       this.build = __bind(this.build, this);
 
+      this.bindingRegExp = __bind(this.bindingRegExp, this);
+
       this.build();
     }
 
+    View.prototype.bindingRegExp = function() {
+      var prefix;
+      prefix = Rivets.config.prefix;
+      if (prefix) {
+        return new RegExp("^data-" + prefix + "-");
+      } else {
+        return /^data-/;
+      }
+    };
+
     View.prototype.build = function() {
-      var attribute, context, keypath, node, path, type, _i, _len, _ref, _results;
+      var attribute, context, dataRegExp, keypath, node, path, type, _i, _len, _ref, _results;
       this.bindings = [];
       _ref = this.el.getElementsByTagName('*');
       _results = [];
@@ -76,8 +88,9 @@
           _results1 = [];
           for (_j = 0, _len1 = _ref1.length; _j < _len1; _j++) {
             attribute = _ref1[_j];
-            if (/^data-/.test(attribute.name)) {
-              type = attribute.name.replace('data-', '');
+            dataRegExp = new RegExp(this.data, 'g');
+            if (this.bindingRegExp().test(attribute.name)) {
+              type = attribute.name.replace(this.bindingRegExp(), '');
               path = attribute.value.split('.');
               context = this.contexts[path.shift()];
               keypath = path.join('.');

@@ -37,14 +37,20 @@ class Rivets.View
   constructor: (@el, @contexts) ->
     @build()
 
+  # The regular expression used to match Rivets.js data binding attributes.
+  bindingRegExp: =>
+    prefix = Rivets.config.prefix
+    if prefix then new RegExp("^data-#{prefix}-") else /^data-/
+
   # Parses and builds new Rivets.Binding instances for the data bindings.
   build: =>
     @bindings = []
 
     for node in @el.getElementsByTagName '*'
       for attribute in node.attributes
-        if /^data-/.test attribute.name
-          type = attribute.name.replace 'data-', ''
+        dataRegExp = new RegExp(@data, 'g')
+        if @bindingRegExp().test attribute.name
+          type = attribute.name.replace @bindingRegExp(), ''
           path = attribute.value.split '.'
           context = @contexts[path.shift()]
           keypath = path.join '.'