Fix bug with IPythonInputSplitter in block input mode.

Clean up small leftover uses of raw streams in exception handling.

Merge branch 'fp-newkernel' into newkernel

Add notes about configurability of font details and Win32 defaults.

Improvements to tab completion in Qt GUI with new api. All tests in main test suite pass at the moment.

Improve io.rprint* interface, unify usage in ipkernel. Starting to use print_function where possible.

Add line splitting for text completion (like readline does internally). This will let us offer full tab completion in GUIs.

Merge branch 'newkernel' into qtnewkernel

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.