Merging branch created for work on dev docs.

Updating developer docs.

Updated the main developer guidelines to reflect recent changes.

Update of docs to reflect the new ipcluster version. The docs are now fully up to date with the new ipcluster script.

Merging upstream changes from trunk.

Documentation work. I have updated some of the changes.txt and also began a re-write of the parallel MPI docs.

Merging ipython-editor-mate branch. This branch adds TextMate support to ipy_editor.py.

Merging upstream changes.

Merged from my trunk-dev: Lukasz Pankowski's patches: sh profile prefilter changes (allow ~/bin/foo, /bin/foo in addition to ./foo to be directly executed) allow multiple dashes in demo ---stop--- editor hook does TryNext shadow history docs Allow multiline macros in threaded shells Do not hang with dev version of PyGTK: do set_interactive(False)

Adding TextMate to ipy_editor.py thanks to Matt Foster for the patch.