Require Rails 4 and above
- do not use #scoped
Updates changelog
Add .ruby-version
Merge branch 'feature/activerecord4-upgrade' into develop

* feature/activerecord4-upgrade:
  Add .ruby-version
  Updates changelog
  Require Rails 4 and above - do not use #scoped
Updates version
Merge branch 'release/v1.0.0'

* release/v1.0.0:
  Updates version
  Add .ruby-version
  Updates changelog
  Require Rails 4 and above - do not use #scoped