Added proper error handling in Win32EmbedControl.
Allowed external commands to have return values.

git-svn-id: http://svn.purei.org/palleon/trunk@268 e658db38-2ae6-4b1c-8a17-0a8554443f32
Embedding flag is now passed through the CreateApplication function instead of going through a function in the Application class.

git-svn-id: http://svn.purei.org/palleon/trunk@269 e658db38-2ae6-4b1c-8a17-0a8554443f32
Fixed build.

git-svn-id: http://svn.purei.org/palleon/trunk@270 e658db38-2ae6-4b1c-8a17-0a8554443f32