- Split off tcsh-lang as its own package
- Make language catalogs work that is use tcsh instead of tcsh.cat
as this is the system default

- Update to tcsh minor version V6.17.06
* PR/110: Add $anyerror to select behavior. Default to the new one.
* Don't try to spell commands that are correct (Rouben Rostamian)
[./tcsh -f; set path=($path 2); mkdir foo2; cd foo2; touch foo;
chmod +x foo; set correct=cmd; ./foo -> ../foo]
* Don't push the syntax struct on the cleanup stack, because on foo;bar
if foo fails, we will free bar prematurely (Ben Miller)
* Avoid infinite loop while trying to print the pid of a dying process
to a closed file (Bob Arendt)
* Handle completion of ${ variables (Anthony Mallet)
* Add --disable-nls-catalogs (Corinna Vinschen)
* convert message catalogs to UTF-8 (Werner Fink)
* check that the NLS path works before setting $NLSPATH.
* use SYSMALLOC for GLIBC (Werner Fink)
* use mallinfo for SYSMALLOC (Corinna Vinschen)
* Use mkstemp() if there for here docs (Werner Fink)
* Fix handling of errors and exit values in builtins (Werner Fink)
* Better pty name detection (Werner Fink)
* Enable NLS catalogs on Cygwin (Corinna Vinschen)
* NLSPATH handling fixes (Corinna Vinschen)
* Avoid infrequent exit when tcsh cd's into a non-existent directory
https://bugzilla.novell.com/show_bug.cgi?id=293395 (Werner Fink)
* Don't try to spell check full path binaries that are correct because
they can cause hangs when other nfs partitions are hung. (Werner Fink)
* Avoid nested interrupts when exiting causing history writing to fail
https://bugzilla.novell.com/show_bug.cgi?id=331627 (Werner Fink)