Add .gitignore file.
Add .gitignore file.

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