Fixing LoadError for rspec/version for apps that use rspec-rails
Fixing LoadError for rspec/version for apps that use rspec-rails

- Fix for ci_reporter-1.8.2/lib/ci/reporter/rspec.rb:19:in `require': no such file to load -- rspec/version (LoadError) when using rspec-rails. Instead of using 'rspec/version', we should be using 'rspec/core/version'. For apps that use vanilla rspec, that also exists and will work just fine. However, for apps that use rspec-rails, rspec/version does not exist. It is probably a mistake by rspec to have version.rb in both rspec and in rspec-core as it introduces unnecessary confusion that causes this issue.

shepmaster/ci_reporter,okitan/ci_reporter,ci-reporter/ci_reporter,mihail-ek/ci_reporter