orbeckst, dldotson, kain88-de, ianmkenney
* support Python 3 (44)
* support Gromacs 2018 (and likely also Gromacs 2016) (96)
* moved numkit to own package now at
https://github.com/Becksteinlab/numkit (#111)
* removed gromacs.analysis legacy code, can now be found
in its own repository
https://github.com/Becksteinlab/gromacswrapper.analysis (#82)
* removed vmd sub-package (112), code now at
https://github.com/Becksteinlab/remote-vmd
* removed obsolete staging sub-package (113)
* removed obsolete gromacs.manager module (115)
* removed obsolete fileformats.itp (and fileformats.preprocessor) (139)
* use versioneer for version management (removed gromacs.version)
* add mdrun_args option to setup.energy_minimize to pass options to
the mdrun that carries out the energy minimization
* set ff (OPLS/AA) and water model (TIP4P) as defaults for
setup.topology()
* changed call signature of scaling.partial_tempering() (PR 138)
* development: master branch instead of develop branch (146)