bump up feel++ version to 0.96 beta 2
Merge branch 'master' of https://github.com/feelpp/homebrew-science
@feelpp/feelpp Feel++ in Homebrew is now at 0.96.0 Beta 2 and it builds nicely 
see https://github.com/feelpp/feelpp/releases

The Mac Feel++ release should be out very soon now

cd /usr/local/Library/Tapps/feelpp-science 
git pull origin 
# if feelpp is already install
brew upgrade feelpp 
# if you want to install it
brew install feelpp

@aancel I commented out your nice patch for CMAKE_BUILD_TYPE None, I modified
Feel++ so that it accepts it and that's fine.