[Framework] Bring in changes from sandbox

Bring in changes from 'sandbox' branch. These include:

* Reconfiguring require's baseUrl such that relative
  paths work as expected in define call dependencies.
  Previously this only worked as expected in the
  framework bundle, since data-main points there.
* Add support for a 'constants' category of extension,
  to define application constants from bundles. This
  allows services to treat static values (such as
  persistence URIs) as injectable dependencies.
* Various assurances that properties from extension
  definitions will be exposed upon resolved
  implementations, even after partial construction.

WTD-572.

platform/framework/src/Main.js

@@ -80,6 +80,9 @@ define(
             initializer.runApplication(Constants.BUNDLE_LISTING_FILE);
         }
 
+        // Reconfigure base url, since bundle paths will all be relative
+        // to the root now.
+        requirejs.config({ "baseUrl": "" });
         injector.invoke(['$http', '$log', initializeApplication]);
     }
 );

platform/framework/src/register/CustomRegistrars.js

@@ -49,6 +49,29 @@ define(
                 };
             }
 
+            function registerConstant(extension) {
+                var key = extension.key,
+                    value = extension.value;
+
+                if (typeof key === "string" && value !== undefined) {
+                    $log.info([
+                        "Registering constant: ",
+                        key,
+                        " with value ",
+                        value
+                    ].join(""));
+                    app.constant(key, value);
+                } else {
+                    $log.warn([
+                        "Cannot register constant ",
+                        key,
+                        " with value ",
+                        value
+                    ].join(""));
+                }
+
+            }
+
             // Custom registration function for extensions of category "route"
             function registerRoute(extension) {
                 var route = Object.create(extension);
@@ -93,6 +116,7 @@ define(
             // name of the extension category to be handled, and the value
             // is the function which handles it.
             return {
+                constants: mapUpon(registerConstant),
                 routes: mapUpon(registerRoute),
                 directives: mapUpon(new CustomRegistrar("directive")),
                 controllers: mapUpon(new CustomRegistrar("controller")),

platform/framework/src/register/ExtensionRegistrar.js

@@ -156,6 +156,9 @@ define(
             }
 
             function registerExtensionGroup(extensionGroup) {
+                // Announce we're entering a new phase
+                $log.info("Registering extensions...");
+
                 // Register all declared extensions by category
                 Object.keys(extensionGroup).forEach(function (category) {
                     registerExtensionsForCategory(

platform/framework/src/register/PartialConstructor.js

@@ -26,10 +26,10 @@ define(
          */
         function PartialConstructor(Constructor) {
 
-            return function () { // Bind services
+            function OuterConstructor() { // Bind services
                 var dependencies = Array.prototype.slice.call(arguments);
 
-                return function () { // Bind everything else
+                function InnerConstructor() { // Bind everything else
                     var other = Array.prototype.slice.call(arguments),
                         instance = Object.create(Constructor.prototype);
 
@@ -41,7 +41,16 @@ define(
 
                     return instance;
                 };
+
+                // Copy properties from original constructor
+                Object.keys(Constructor).forEach(function (k) {
+                    InnerConstructor[k] = Constructor[k];
+                });
+
+                return InnerConstructor;
             };
+
+            return OuterConstructor;
         }
 
         return PartialConstructor;

platform/framework/src/resolve/ExtensionResolver.js

@@ -31,12 +31,21 @@ define(
                             } :
                             Object.create(impl);
 
-                    Object.keys(definition).forEach(function (k) {
-                        result[k] = definition[k];
+                    // Copy over static properties
+                    Object.keys(impl).forEach(function (k) {
+                        result[k] = impl[k];
                     });
 
+                    // Copy over definition
+                    Object.keys(definition).forEach(function (k) {
+                        if (result[k] === undefined) {
+                            result[k] = definition[k];
+                        }
+                    });
+                    result.definition = definition;
+
                     // Log that this load was successful
-                    $log.info("Loaded " + extension.getLogName());
+                    $log.info("Resolved " + extension.getLogName());
 
                     return result;
                 }