Added principal_class support to Rake task. Fixed loading bundles with new platform-aware code.

Reviewed by me.

Foundation/CPBundle.j

@@ -122,7 +122,16 @@
     {
         info = CPPropertyListCreateFromData([CPData dataWithString:data]);
 
-        [CPURLConnection connectionWithRequest:[CPURLRequest requestWithURL:[self bundlePath] + "/" + [self objectForInfoDictionaryKey:"CPBundleExecutable"]] delegate:self];
+        var platform = '/',
+            platforms = [self objectForInfoDictionaryKey:"CPBundlePlatforms"];
+
+        if (platforms)
+        {
+            platform = [platforms firstObjectCommonWithArray:OBJJ_PLATFORMS];
+            platform = platform ? '/' + platform + ".platform/" : '/';
+        }
+
+        [CPURLConnection connectionWithRequest:[CPURLRequest requestWithURL:[self bundlePath] + platform + [self objectForInfoDictionaryKey:"CPBundleExecutable"]] delegate:self];
     }
     else
     {

Rake/lib/objective-j/bundletask.rb

@@ -197,6 +197,7 @@ module ObjectiveJ
         
         attributes :email, :homepage, :github_project, :description, :license_file, :license
         attributes :build_path, :intermediates_path
+        attribute :principal_class
         #    attributes :autorequire, :default_executable
         #    attribute :platform,               Gem::Platform::RUBY
         
@@ -410,8 +411,12 @@ module ObjectiveJ
             info_plist_path = build_path + '/Info.plist'
             info_plist = { 'CPBundleName' => name, 'CPBundleIdentifier' => identifier, 'CPBundleInfoDictionaryVersion' => 6.0, 'CPBundleVersion' => version, 'CPBundlePackageType' => Bundle::Type.code_string(type) }
             
-            info_plist['CPBundlePlatforms'] =  platforms;
-            
+            info_plist['CPBundlePlatforms'] = platforms;
+
+            if principal_class
+                info_plist['CPPrincipalClass'] = principal_class
+            end
+
             file_d info_plist_path do
                 File.open(info_plist_path, 'w') do |file|
                     file.puts info_plist.to_plist