New pragmas: option, warning.
New simplified zero division detector.
Fixed const scopes.
Fixed 'assigned to itself' warning on multidimensional array's cell's (invertion operators).
Imported from SM-AM: 1d1244c2f0.
"This fixes a bug where returning a string from a variadic function caused
an invalid memory access error during runtime. It seems like they forgot
to update existing string return code for variadic functions."
commit 011d9b6b07d904ad1e81ef7c747269903e2d47c4
Author: David Anderson <dvander@alliedmods.net>
Date: Mon Jan 11 00:17:08 2010 -0600
Initial import from Subversion (amxmodx/trunk rev 3757).