alter XTALFIT to handle non-crystal dimers; OpenMP parallelization of WCA term for GB and GK implicit solvent

git-svn-id: svn://dasher.wustl.edu/tinker@59 9dbd3ec4-0870-4ad8-bd6a-181c4f7deb04
Add dynamic allocation to LSQ fitting; change default POLAR-EPS to 0.000001

git-svn-id: svn://dasher.wustl.edu/tinker@60 9dbd3ec4-0870-4ad8-bd6a-181c4f7deb04
Merge branch 'master' of https://github.com/apes-soft/tinker