OSX fortran works now when we use a true gcc toolchain, and make sure we always are using the right stdc++ library

Signed-off-by: Ian Bell <ian.h.bell@gmail.com>
Remove home-built builder files

Signed-off-by: Ian Bell <ian.h.bell@gmail.com>
Add timer to builders

Signed-off-by: Ian Bell <ian.h.bell@gmail.com>
Merge branch 'master' of https://github.com/coolprop/coolprop