fix(emacs/lean-company): fix auto-complete behavior after tab
fix(emacs/lean-company): fix auto-complete behavior after tab

fix #192

digama0/lean,rlewis1988/lean,johoelzl/lean,digama0/lean,fpvandoorn/lean,javra/lean,soonhokong/lean,fgdorais/lean,c-cube/lean,soonhokong/lean-windows,Kha/lean,fgdorais/lean,fgdorais/lean,digama0/lean,leanprover-community/lean,fgdorais/lean,fpvandoorn/lean2,levnach/lean,soonhokong/lean-windows,c-cube/lean,avigad/lean,leanprover/lean,avigad/lean,leanprover-community/lean,fpvandoorn/lean,Kha/lean,levnach/lean,sp3ctum/lean,sp3ctum/lean,fpvandoorn/lean,avigad/lean,htzh/lean,htzh/lean,leanprover/lean,levnach/lean,sp3ctum/lean,rlewis1988/lean,digama0/lean,dselsam/lean,sp3ctum/lean,dselsam/lean,UlrikBuchholtz/lean,soonhokong/lean-osx,avigad/lean,leodemoura/lean,johoelzl/lean,fgdorais/lean,Kha/lean,javra/lean,UlrikBuchholtz/lean,htzh/lean,soonhokong/lean,eigengrau/lean,levnach/lean,leodemoura/lean,johoelzl/lean,fgdorais/lean,eigengrau/lean,soonhokong/lean,Kha/lean,leanprover/lean,UlrikBuchholtz/lean,dselsam/lean,c-cube/lean,fpvandoorn/lean2,avigad/lean,johoelzl/lean,soonhokong/lean-windows,johoelzl/lean,rlewis1988/lean,UlrikBuchholtz/lean,rlewis1988/lean,eigengrau/lean,rlewis1988/lean,htzh/lean,fpvandoorn/lean,rlewis1988/lean,UlrikBuchholtz/lean,leanprover-community/lean,soonhokong/lean-windows,c-cube/lean,javra/lean,fpvandoorn/lean2,fpvandoorn/lean2,leodemoura/lean,soonhokong/lean,avigad/lean,htzh/lean,leanprover-community/lean,leanprover-community/lean,soonhokong/lean-osx,eigengrau/lean,Kha/lean,dselsam/lean,soonhokong/lean,digama0/lean,fpvandoorn/lean,leanprover/lean,soonhokong/lean-osx,dselsam/lean,fpvandoorn/lean2,leodemoura/lean,soonhokong/lean-osx,c-cube/lean,leodemoura/lean,soonhokong/lean-osx,levnach/lean,sp3ctum/lean,leanprover-community/lean,Kha/lean,eigengrau/lean,digama0/lean,dselsam/lean,javra/lean,fpvandoorn/lean,leodemoura/lean,johoelzl/lean,leanprover/lean,leanprover/lean,javra/lean,soonhokong/lean-windows