SixArm/sixarm_ruby_sign_in_simple

# Changes

* 2018-06-21 1.2.1 Update SimpleCov syntax; drop Coveralls
* 2017-08-13 1.2.0 Update all SixArm sign in/out gem versions to 1.2.0 
* 2017-08-13 1.1.6 Update to Ruby 2.4, spdx licenses, rake test, etc.
* 2015-07-07 1.1.5 Update gemspec to use file manifest
* 2012-03-14 1.1.4 Update docs, tests