General rule of thumb in Ruby, only applications use Gemfile.lock;
gems SHOULD NEVER use Gemfile.lock files. Remove the file and guard
against future accidental inclusion.

Add tests against version 2.0.1 NuoDB in addition to prior releases.

Restructure RDoc; use includes, restore rdoc from md.

Update copyright years.

Separate README use version GETTING STARTED use (which is in the doc).

Add module documentation, and prevent accidental module doc inclusion
elsewhere which slurped in the copyright info.

Add missing copyrights.