Declare memmove/memset for Sloaris.
Rewrote fg_time.c routine to get LST start seconds to better handle
Solaris, and be easier to port, and understand the GMT vs. local
timezone issues.
on a wider variety of platforms.
Added the declaration of memmove needed by the stl which apparently
solaris only defines for cc compilations and not for c++ (__STDC__)
