This is a temporary hack that we needed until the Tcl 8.3 upgrade
is finished. We need to be able to do a "package require tcltest"
from an installed shell. This is not supported in Tcl 8.1 but it
is supported in Tcl 8.3. The solution to this problem is to install
the tcltest package with the defs.tcl file from 8.1 distro:

cp tcl8.1/tests/defs.tcl library/tcltest0.1/tcltest.tcl

The name of the file is changed to tcltest.tcl so that the
Makefile will not need to be updated when the Tcl 8.3
upgrade is finished. This README file can also be removed
when the Tcl 8.3 upgrade is finished. We also use the
revision number 0.1 for the package so that an error
will be generated if someone does a :

package require tcltest 1.0

Also note that the "package provide tcltest" is done
in the modified pkgIndex.tcl file, this modified
file can be removed as part of the Tcl 8.3 upgrade.

