[readme] Appveyor badge points to master branch.
[readme] Appveyor badge points to master branch.
simbody/simbody,chrisdembia/simbody,Gjacquenot/simbody,Gjacquenot/simbody,scamille/simbody,robojukie/simbody,scamille/simbody,robojukie/simbody,chrisdembia/simbody,elkingtonmcb/simbody,elkingtonmcb/simbody,elkingtonmcb/simbody,Gjacquenot/simbody,simbody/simbody,chrisdembia/simbody,scamille/simbody,robojukie/simbody