secure in .gprc

[Michael Somos <somos@grail.cba.csuohio.edu>]

In the default "misc/gprc.dft" file, the "secure = 1" occurs very
early and *before* some other commands like setting "help" which
will fail if "secure = 1" is enabled. The fix is to move these
other commands up before enabling secure. Shalom, Michael

grail:/tmp/local> bin/gp
Reading GPRC: /home1/faculty/somos/.gprc ...  ***   [secure mode]: can't modify 'help' default (to gphelp -detex).

### Errors on startup, exiting...