Version in setup update

Minor COLAB modelzoo improvements (DeepLabCut#2103)

* Change dataset_type to single-animal

* Minor improvements

Fix video checkbox (DeepLabCut#2054)

2.4 - relase candiate 1, new GUI.

2.3rc1 - fix version number; not 2.4!

v2.2.3 (DeepLabCut#2003)

* Update reinstall.sh

* Update setup.py

* Update version.py

DLC 2.2.2 release

bump version to 2.2.1.1

Find data transformer (DeepLabCut#1776)

* Stricter search of analyzed data
* Edit data file suffix

DLC 2.2.0.6