Remove duplicate ultraTB and adjust code accordingly.

Opening trunk for 0.11 and development. The 0.10 series now will hold any fixes for that series. The trunk is open for the refactoring work that will become 0.11.

Releasing 0.10. Final tag and revnumber update for the relase. I will now apply this state of trunk to the 0.10 branch and cut the release from there. The next immediate commit will be to re-mark trunk as in-development for the 0.11 series.

Protect against absent global IPython instance. This basically applies most of the changes to ultraTB made by Brian in the reorg branch here: http://bazaar.launchpad.net/~ipython-dev/ipython/module-reorg/revision/1225 To our duplicate copies of ultraTB (the duplication is already gone in the reorg branch). This now means that the trial-based tests run fine if executed as trial IPython OR trial IPython.kernel where as the latter form was failing before. The reason why the former used to work was that a hidden global ipython is created, *upon import*, by ipdoctest. That will stay for now, but I've made it bug https://bugs.launchpad.net/ipython/+bug/409096 marked as critical for 0.11 that I'll need to fix.

Updated docs to reflect changes in our test running.

Updated Steven Bethard's argparse to version 1.0 final. Argparse is developed at: http://code.google.com/p/argparse/ In IPython.external, we *only* include argparse.py, we do not ship the docs nor the test suite.

Merging upstream changes from inputhook branch. These changes are being propagated from trunk->module-reorg->inputhook to me.

Removing sandbox. This had older config prototypes. All of this has been refactored and put into the new traitlets, component and config stuff.

First prototype of component, traitlets and a config loader.

Merging upstream change from module-reorg branch. Recently lp:ipython was merged into module-reorg. This is propagating that merge into this inputhook branch.