#41 tcldebugger missing DESTDIR in Makefile

[Wart]

The Makefile.in for tcldebugger is missing $(DESTDIR)
for the install-libraries target. This causes installation
failures in certain environments.

The attached patch fixes this problem, and two more:

1) Change the installation directory name to
'tcldebugger' to prevent possible filename conflicts
with other debugging packages

2) Change the installation directory from /usr/lib to
/usr/share. /usr/lib is preferred for binary
platform-specific files, while /usr/share is preferred
for platform-neutral files such as script libraries.

[Wart]