Added an adapter layer between the AtomType and the rest of the code to 
handle the bolt-on capabilities of new types. 

Fixed a long-standing bug in how storageLayout was being set to the maximum
possible value.

Started to add infrastructure for Polarizable and fluc-Q calculations.

Creating busticated version of OpenMD

Almost all of the changes necessary to create OpenMD out of our old
project (OOPSE-4)

Adding single precision capabilities to c++ side

(1) complete section parser's error message
(2) add GhostTorsion
(3) accumulate inertial tensor from the directional atoms before calculate rigidbody's inertial tensor

isLinear and linearAxis are virtual in StuntDouble,
but are implemented by DirectionalAtom and RigidBody
In StuntDouble, they should return false and "-1" but
there should be logic to figure them out in the other
two classes

Import of OOPSE v. 2.0