Issues/3922 fix pending rspec tests

Fix pending rspecs for works and skins, and add some to test the pseud model. Down from 88 pending tests to 76.

https://code.google.com/p/otwarchive/issues/detail?id=3922
Right now we can save skins with simple box-shadows, but don't recognize insets or multiple shadows (so the above test passes, but not the previous one.) this can be verified in the browser.