checkpoint
added a test project for WP81.RT and a profile259 version of Ugly to support it.  modified Ext.WP81.RT to reference the profile259 version of the reference assembly.  Ext.WP81.RT also gripes that it cannot add a reference to cppimport.WP8, but that's a non-fatal warning for some reason, and it works anyway.  Test.VS.WP81.RT passes all its tests, despite the presence of these so-called warnings.