Merge branch 'develop'
Merge branch 'develop'
Update README.rst
Merge branch 'master' into develop
Added the 'group' option to register_arg so that tool options can leverage output groups.
Started working on the basics of documentation and getting multitool script to work on Python3.
Created some of the initial docs for sphinx.
Getting initialdocs to a known state.
Merge branch 'initialdocs' into develop