* github auth: use org id to verify creds
* add check for required org param; add test case
* update UTs
* add nil check for org
* add changelog
* fix typo in ut
* set org ID if it is unset; add more ut coverage
* add optional organization_id
* move client instantiation
* refactor parse URL; add UT for setting org ID
* fix comment in UT
* add nil check
* don't update org name on change; return warning
* refactor verifyCredentials
* error when unable to fetch org ID on config write; add warnings
* fix bug in log message
* update UT and small refactor
* update comments and log msg
* use getter for org ID