[FGS] Preliminary packaging

[Tyler Mitchell]

> Note, there is no point in including the "#!/bin/bash" at the beginning.
> The setenv.sh script has to be sourced, not run to have an effect on the
> callers environment.  So if the #! instructions get used it means the
> script is starting a subshell and won't have any real effect anyway.

When you say sourced, you mean just as a reference not as a script?  I'm 
not familiar with the term.
I removed the first line.