Prompt messages are now implemented for both in/out prompts.

added parallel message docs to development section

Integrated new IPythonInputSplitter into IPythonWidget.

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

Fixed bug with ConsoleWidget smart paste.

Initial support in ipkernel for proper displayhook handling.

Fixed rare bug with continuation prompt deletion.

Set more tolerable default colors for ANSI color codes.

Added support for ANSI erase codes. Clearing the console via ANSI escape sequences is now supported.

Final cleanups responding to Brian's code review. The code isn't perfect yet, but good enough for integration into trunk so Evan and the others can start using it. I've noted at the top a few key todo items left to think about.