[Image-SIG] PIL rc2 build buglet

[clee@spiralis.merseine.nu]

Just tried building the new release on linux.  One saw one problem
during the "python setup.py build" stage.  The setup script appears to
expect a "Imaging-1.1.3c2/tk" ("tk" in all lowercase) directory to exist, but the
distribution unpacks to an uppercase "Tk" directory.  The build went
smoothly once I created a symbolic link "ln -s ./Tk ./tk"

Many thanks to \F for the new release.

-chris