Added "smart" auto-deactivate which searches path back to root ("/") for any .python-env files.
 On branch feature/deactivate
 Changes to be committed:

	modified:   .gitignore
	modified:   bin/pyenv-autoenv
Merge branch 'release/0.0.1'
Added auto-deactivation when navigating out of the .python-env directory, but not its subdirectories.