Update to 2.2.12

Fix #19 - Fix #18

Improve dbgdir search (#17)

Allow user to specify it manually via an environment variable.
Attempt to load the root from the register (as was previously commented)
Attempt to find the default paths.

Update python-package.yml

Tagging 2.2.8

bump version to 2.2.7

Update CHANGELOG.md

Package

Update setup.py