Update notes.
Shorten long line.
Add SCons tool for a recursive glob.
Make the `find` SCons tool also look for directories.
Ignore IDEA generated files.
Make the `pep8`, `pylint` and `pyunit` SCons tools look for sources files
recursively and accept a starting path.
Use a separate folder for source files.
Work around http://bugs.python.org/issue5380
Update notes.