* default for cache is now "no"
* Added version_test() to testsuite to make some of the
tests conditional on the values generated by --version.
- the configure options help is formatted with AC_HELP_STRING
* Changed the configure to search for libTcl.sh to acquire all it's
necessary Tcl env.vars from it.
* created a utility function stringer() to handle most of the strcpy/strcat
operations and to automatically allocate string memory.
* Mostly changed the memory malloc/free to use stringer/null_free.
* rewrote some of the code logic to have a single point of exit
with unwinding of memory allocations.
fly, as it were. It's a powerful mechanism for dynamically changing
environment variables, aliases, X11 resources, etc.
It uses an embedded Tcl intrepretor, with a few extensions. Therefore,
it has a well defined language syntax.
Version 3.1 is GPL, and includes many improvements over the 3.0beta.
