Merge branch 'release/2.0.17.3' into develop

* release/2.0.17.3:
  version bump
Merge branch 'master' into develop

* master:
  Added in fix for those still on Ruby 1.8. I now detect the version of Ruby and use the appropriate method on the line.
version bump to what it should have been last time...
Merge branch 'release/2.0.18.0'

* release/2.0.18.0:
  version bump to what it should have been last time...