GitLab

* Top level Python module is now "openmm"

* Updated module names in examples

* Updated module names in documentation

* Updated module in CI scripts

* Added deprecation warning

* Made ordering of impropers more deterministic

* Fixed typo

* Do not alter mass of hydrogens in rigid water

* Do not alter mass of hydrogens in rigid water

* nbthole

* Update charmmpsffile.py

* Update charmmpsffile.py

* Update charmmparameterset.py

fix multiple dihedral with the same periodicity and add a warning reminder for improper dihedral

* add test example for NBTHole

add system files of CYT-GUA-CYT DNA segment for testing NBThole

* Update TestCharmmFiles.py

* Updated to latest values for physical constants

* Updated documentation on physical constants

* Updated Python unit definitions

* Fixed constants in test case

* Added a comment

Make CharmmPsfFile ignore H-H water bond that is required for rigid water with original CHARMM implementation of constrains.

- temporary class WellTemperedMetadynamics deleted

Apparently it is the slightly more correct way of doing thigns, as explained in
https://stackoverflow.com/a/30676267/538973