Merging changes from trunk: fix in setupbase.py (ipython->IPython) and missing __init__.py files.

Fixing a few small bugs in the setup.py scripts. In setupbase.py, in find_scripts, ipython was spelled as lowercase. This didn't cause a problem on OS X as it is case insensitive. But on Linux, it crashed. Now ipython is spelled properly as "IPython". Also, kernel/config/tests and UserConfig were missing their __init__.py files. These have been added.

Merge sconfig branch.

Creating subdirs in docs/source for each subpackage documentation.

Organizing the docs/examples directory. I moved all the old examples into a core subdir. I then created a new kernel subdir for all the examples that are being moved here from ipython1-dev. The examples in core should probably be organized into more appropriately named subdirs. The core subdir should be reserved for things related to the ipython core (as it develops).

Cleaning up the IPython docs. I have removed old README files that were outdated and being maintained in the top-level dir. I have removed all mentions of the old lyx based docs. Created subdirectories for man and emacs stuff. Having fun.

Creating new COPYING.txt that is copied over from ipython1-dev.

Getting ready to merge ipython1 docs in.

Merge of the ipython-ipython1a branch into the ipython trunk. This merge represents the first merging of the things in ipython1-dev into ipython. More specifically, this merge includes the basic ipython1 kernel and a few related subpackages. Most importantly, the setup.py script and friends have been refactored.

apply ondrej's man page patch to clean up lintian checks