Added stristr().
Added stristr().

fluffyfreak/bx,MikePopoloski/bx,BlueCrystalLabs/bx,pigpigyyy/bx,attilaz/bx,dariomanesku/bx,u-engine/bx,fluffyfreak/bx,attilaz/bx,OlegOAndreev/bx,BlueCrystalLabs/bx,septag/termite,coconutxin/bx,0-wiz-0/bx,bkaradzic/bx,septag/termite,mmicko/bx,septag/bx,septag/termite,septag/termite,OlegOAndreev/bx,MikePopoloski/bx,bkaradzic/bx,septag/termite,coconutxin/bx,dariomanesku/bx,u-engine/bx,septag/bx,pigpigyyy/bx,septag/termite,ShuangxueBai/bx,ShuangxueBai/bx,mmicko/bx,0-wiz-0/bx