WebError and WebOb now in pylons-dev

[Ben Bangert]

I've re-factored the error handling in pylons-dev to now use WebError, as well as cleaning up the WebError package a little bit and reducing a lot of the visual clutter that was present in the default pages.

Cheers,
Ben

I'm now actually happy enough with the appearance of exceptions in the default template in WebError, that I have no desire to further skin it for Pylons as well. Note that the XML view of the traceback isn't ready yet, should you give it a go. I'm curious if anyone has any feedback, or suggestions for anything else to include on the exception traceback page. Note that WebOb is now an option for use instead of Paste's WSGIRequest/WSGIResponse globals should it be activated in middleware.py. The WebOb objects provide significantly more functionality.

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