Here's an updated timezone patch, against current cvs HEAD.
It also adds a couple of more fixes to the find_my_exec code so it will
pick up the tz directory in all places. (It applies to cvs after the
code was moved back out of main.c and into postmaster.c/postgres.c).
Same files added and removed as before.
Passes tests on win32, linux, freebsd.
//Magnus
<<pgtime.h>> <<strftime.c>>
