feat(CMakeLists.txt): install lean library to LIBRARY_DIR (default: lib/lean)
feat(CMakeLists.txt): install lean library to LIBRARY_DIR (default: lib/lean)

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