Fix failing tests for escaped magics and undo changes to text.py. The changes to text.py were unnecessary, but since this branch has already been published and merged I'm simply undoing them rather than rebasing it and dropping that commit.

Fix broken %pdb/%debug (signature of DisplayTrap changed)

Improved matplotlib backend and plotting. * Set background to white. I tried transparent, but white looked better. * Fixed dark style sheet for rich text widget.

Minor cleanup to RichIPythonWidget.

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

Fixing two minor bugs. * ipapi now returns an InteractiveShell. * Fixes a problem in ultratb so that %debug now works.

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

First working draft of new payload system.

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

Fixing imports and syntax errors.