Merge branch 'newkernel' into upstream-newkernel Conflicts: IPython/frontend/qt/console/scripts/ipythonqt.py IPython/zmq/ipkernel.py

GUI support for wx, qt and tk.

Added option to ipythonqt.py for setting the paging style and grouped the options into kernel settings/widget settings.

The IPythonWidget now tries to be smart about choosing colors to use for ANSI color codes.

Minor debug statement removed.

Initial GUI support in kernel.

Fixed regressions in the pure Python kernel.

* Fixed regression from last commit: syntax highlighting works robustly again. * Added option to ipythonqt for enabling text-based tab completion.

Fixed bug in ConsoleWidget where text could be dragged and dropped.

* The ConsoleWidget now has full undo/redo support. Previously, the undo/redo history was cleared after every continuation prompt. This is no longer the case. * Fixed Delete not respecting continuation prompts.