Merge pull request #265 from MyoHub/dev

BUGFIX: Manipulation ENV

Merge pull request #261 from MyoHub/dev

2.8.3 release

Merge pull request #253 from MyoHub/dev

2.8.2 release

Merge pull request #249 from MyoHub/dev

Update version to 2.8.1

Merge pull request #240 from MyoHub/dev

2.8.0 release

Merge pull request #219 from MyoHub/dev

2.7.0 release

Merge pull request #199 from MyoHub/dev

Dev

2.4.0 release

2.3.0 release

2.2.0 release