Cone-tile

-----

- Using and depending now on zope.exceptions to format tracebacks with
supplements.
[jensens, 2012-06-06]

- Improved visibility of tracebacks, they appear now in the error log.
even if an expression like tal:replace="structure tile('editform')"
ate it, the traceback is logged. traceback supplements are rendered.
[jensens, 2012-06-05]

- Removed superfluos try except
[jensens, 2012-06-05]

- Fixed dependencies for integrated tests
[jensens, 2012-06-05]

-----

- Tiles can be overwritten.
[rnix, 2012-05-22]

- Use ``zope.interface.implementer`` instead of ``zope.interface.implements``.
[rnix, 2012-05-18]

---

- Fit for pyramid 1.1 + 1.2
[rnix, 2011-09-08]

- Documentation
[rnix, 2011-09-08]

- Make it work
[jensens, rnix, et. al]