Update Makefile after file renaming.
Update Makefile after file renaming.

MerlinDMC/gocode,fjl/gocode,kerr-huang/Gocode,lmh008/gocode,MerlinDMC/gocode,mattn/gocode,mdempsky/gocode,beni55/gocode,kerr-huang/Gocode,syohex/gocode,TheBB/gocode,TheBB/gocode,syohex/gocode,toqueteos/LightTable-Go,louiseGrandjonc/gocode,artnez/gocode,beni55/gocode,fjl/gocode,suncycheng/gocode,kerr-huang/Gocode,nsf/gocode,thousandhigh/gocode,mattn/gocode,toqueteos/LightTable-Go,lmh008/gocode,mattn/gocode,mem/gocode,suncycheng/gocode,MerlinDMC/gocode,mdempsky/gocode,thousandhigh/gocode,lmh008/gocode,mem/gocode,ghiden/gocode,mem/gocode,artnez/gocode,MerlinDMC/gocode,artnez/gocode,kerr-huang/Gocode,beni55/gocode,louiseGrandjonc/gocode,ghiden/gocode,nsf/gocode,mem/gocode,thousandhigh/gocode,louiseGrandjonc/gocode,louiseGrandjonc/gocode,suncycheng/gocode,fjl/gocode,fjl/gocode,mdempsky/gocode,syohex/gocode,nsf/gocode,mattn/gocode,TheBB/gocode,beni55/gocode,suncycheng/gocode,thousandhigh/gocode,TheBB/gocode,ghiden/gocode,artnez/gocode,nsf/gocode,syohex/gocode,ghiden/gocode,lmh008/gocode