Added missing trait docblocks

lib/Trait.js

@@ -23,6 +23,15 @@ var AbstractClass = require( __dirname + '/class_abstract' ),
     ClassBuilder  = require( __dirname + '/ClassBuilder' );
 
 
+/**
+ * Trait constructor / base object
+ *
+ * The interpretation of the argument list varies by number. Further,
+ * various trait methods may be used as an alternative to invoking this
+ * constructor.
+ *
+ * @return  {Function}  trait
+ */
 function Trait()
 {
     switch ( arguments.length )
@@ -199,6 +208,18 @@ function _parseProps( name, value, keywords, h )
 }
 
 
+/**
+ * Implement one or more interfaces
+ *
+ * Implementing an interface into a trait has the same effect as it does
+ * within classes in that it will automatically define abstract methods
+ * unless a concrete method is provided. Further, the class that the trait
+ * is mixed into will act as though it implemented the interfaces.
+ *
+ * @param  {...Function}  interfaces  interfaces to implement
+ *
+ * @return  {Object}  staged trait object
+ */
 Trait.implement = function()
 {
     var ifaces = arguments;
@@ -216,6 +237,13 @@ Trait.implement = function()
 };
 
 
+/**
+ * Determines if the provided value references a trait
+ *
+ * @param  {*}  trait  value to check
+ *
+ * @return  {boolean}  whether the provided value references a trait
+ */
 Trait.isTrait = function( trait )
 {
     return !!( trait || {} ).__trait;