* Added a function for spawning a localhost kernel in a new process on random ports. * Refactored the prototype kernel's 'main' function * Gave IPythonWidget a (slightly) better 'main' method.

* Fixed bug in CompletionLexer where a context would be generated for, e.g, 'foo('. * Added unit test for this bug. * Cleaned up and documented CompletionLexer.

Added 'start_listening' and 'stop_listening' methods to the kernel manager.

Updated FrontendWidget to use new 'replace' mode in BlockBreaker.

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

Change get_source() api as per code review, to source_reset(). This now takes no flags, as a non-reset source access can be done simply on the .source attribute.

push() now swallows syntax errors and immediately produces a 'ready' state. This is intended, as the invalid input may in fact be OK with ipython extensions, but that can only be ascertained by the kernel, so the client should send this right away to the kernel.

Add support for append/replace mode after discussion with Evan. Also increase test coverage.

Split blockbreaker tests into a separate file and clean up api. After code review with Brian, decided to explicitly make parts of the API private.

* Added 'stop' methods to the ZmqSocketChannels * Made setting the address of ZmqSocketChannels safe.