Cleaned up KernelManager interface and clarified documentation.

* Updated FrontendWidget to use BlockBreaker for parsing input * Fixed imports in IPythonWidget.

Merge branch 'blockbreaker' of git://github.com/fperez/ipython into qtfrontend

Created tool for handling interactive input blocks. Currently it has 100% test coverage, we should try to keep it that way.

* Created an IPythonWidget subclass of FrontendWidget to contain IPython specific functionality. * Added API for overriding magic commands to the above widget. * Added a non-zero epsilon to time.sleep in the flush method of the kernel manager per Fernando's suggestion

Fix bug where traceback wasn't being correctly stored in remote tasks. Reported by Chris Filo Gorgolewski on the list: http://mail.scipy.org/pipermail/ipython-user/2010-July/006993.html Note regarding the tests: it turns out that chaining too much info into the same deferred produces rather weird side-effects. So I broke up the test into several independent ones with separate deferreds. This fix was done in the 0.10.1 branch as separate commits over time, rebased here into a single, clean one.

Fix in *tests* for recent traceback bug fix. It turns out that chaining too much info into the same deferred produces rather weird side-effects. So I broke up the test into several independent ones with separate deferreds. Note that the original bug fix was OK, the fix is just for the Twisted tests themselves. As Min said, with Twisted code sometimes getting the tests right is harder than the code itself.

Fix bug where traceback wasn't being correctly stored in remote tasks. Reported by Chris Filo Gorgolewski on the list: http://mail.scipy.org/pipermail/ipython-user/2010-July/006993.html

updated sge to launch multiple engines - start cleanly but does not shutdown cleanly

firt pass to support sge