Install kernel-side sys.excepthook so we at least see kernel tracebacks.

Simplified output stream management in ultratb. This lets us have one less hack in the testing globalipapp code, as well as rationalizing the ultratb code a little more. There is now an ostream property for all output that can be used consistently.

First cut at allowing the kernel to be restarted from the frontend.

Reimplemented IPythonWidget's edit magic handling to support line numbers. Also, removed the code path for launching the file with the system default Python application, as this is too dangerous.

Minor cleanup (again).

Fixed minor bug in last checkin.

The FrontendWidget now performs tab-completion more aggressively.

Fixed bug introduced by the recent payload processing refactor.

Fixed bug where replacement prompts were occasionally inserted at inappropriate times.

* Added support for prompt and history requests to the kernel manager and Qt console frontend. * Updated message spec to be consistent with the IPython kernel implementation.

The ConsoleWidget now only pages text if it exceeds the height of the visible window.

Fixed bug where the banner message was syntax highlighted when the frontend connected to a new kernel.

* Tab completion now uses the correct cursor position. * Added trailing newline to pyerr traceback. * Made 'colors lightbg' hack appear less funky to the user.

Update messaging spec.

Multiple improvements to tab completion. I refactored the API quite a bit, to retain readline compatibility but make it more independent of readline. There's still more to do in cleaning up our init_readline() method, but now the completer objects have separate rlcomplete() and complete() methods. The former uses the quirky readline API with a state flag, while the latter is stateless, takes only text information, and is more suitable for GUIs and other frontends to call programatically. Made other minor fixes to ensure the test suite passes in full. While all this code is a bit messy, we're getting in the direction of the APIs we need in the long run.

Improvements to exception handling to transport structured tracebacks. This code is still fairly hackish, but we're starting to get there. We still need to improve the api, because right now runlines() does way too much, and I had to set the exception state in a temporary private variable. But client-side things are working better, so we can continue fixing the kernel without bottlenecking Evan.

Add main ipython script entry point in same location as before.

Fixed line_number being inserted as a string into the %edit payload.

* Refactored payload handling mechanism. * Paging is now integrated into the IPythonWidget. * The first cut at %edit support is now connected to the edit payload. This needs some more work.

Merge branch 'newkernel' of git://github.com/ellisonbg/ipython into qtfrontend