doc(README.md): Add 'How to Install' section
doc(README.md): Add 'How to Install' section

Also remove autoconf, automake, libtool dependencies.

soonho-tri/dreal4,soonho-tri/dreal4,soonho-tri/dreal4,dreal/dreal4,dreal/dreal4,soonho-tri/dreal4,dreal/dreal4,dreal/dreal4