ran an autoreconf, what happens on ubuntu?
adding build.sh to touch files in correct order so that users don't have to run automake/autoreconf when they clone the repo
Added an explicit check which causes ./configure script to fail if c++ compiler not present
change add ways to install c++ compiler in readme
Update README.md
Fixes #29. Use ./build.sh instead of ./configure && make for compiling cloned repos

Use a shell script to touch certain files in a certain order such
that installing/rerunning the latest and greatest autotools is
unnecessary for a freshly-cloned source tree.

This change is moot if the user is compiling from a distribution
tarball.