What's Changed
* Allows AttractionStrength extract reference value from a context by craabreu in https://github.com/RedesignScience/cvpack/pull/45
* Reduces testing time of sheet rmsd content CV by craabreu in https://github.com/RedesignScience/cvpack/pull/46
* Adds method to set unused force group by craabreu in https://github.com/RedesignScience/cvpack/pull/47
* Improves AtomicFunction and CentroidFunction CV (breaks API) by craabreu in https://github.com/RedesignScience/cvpack/pull/48
* Improves performance of unit tests by craabreu in https://github.com/RedesignScience/cvpack/pull/49
* Fixes NumberOfContacts CV (breaks API) by craabreu in https://github.com/RedesignScience/cvpack/pull/50
* Allows reference value redefinition for normalizing residue coordination by craabreu in https://github.com/RedesignScience/cvpack/pull/51
* Enhances effective mass calculation by ignoring null forces by craabreu in https://github.com/RedesignScience/cvpack/pull/52
**Full Changelog**: https://github.com/RedesignScience/cvpack/compare/v0.6.1...v0.7.0