Eliminate accidental privielege elevations, fixes be9#99

UPGRADE: 3.0.0 for Rails 5 breaks Rails 4 - NO NEW FEATURES

Move to `require_relative`

`Acl9.config.merge!` syntax back in, fixes be9#94

Version bump

Version bump

Ruby version bump for CI

Attach to baser class for API love, fixes be9#91

Version bump 1.2

Version bump to 1.1