Fix some Windows 64 bit issues: - make the name liblapack;libblas by default - use pthreadVC2_x64 library
Fix some Windows 64 bit issues:
- make the name liblapack;libblas by default
- use pthreadVC2_x64 library

I also limited the number of parallel compiler threads for Simbody to 4.

elen4/simbody,chrisdembia/simbody,elkingtonmcb/simbody,Gjacquenot/simbody,scamille/simbody,robojukie/simbody,elkingtonmcb/simbody,chrisdembia/simbody,robojukie/simbody,simbody/simbody,simbody/simbody,Gjacquenot/simbody,elkingtonmcb/simbody,Gjacquenot/simbody,chrisdembia/simbody,scamille/simbody,scamille/simbody,elen4/simbody,robojukie/simbody