Updating shared code to the latest version

Moved RVM setup from .ruby-gemset and .ruby-version to Gemfile. Removed
unused parallel_tests from Gemfile.

Removed unused android, ipad and iphone settings from config.yml. Also
updated Firefox to version 23 and updated Windows platform names.

Removed unused HTML report from cucumber.yml.

Bug: 53579
Change-Id: I78cece3e62d47271192691ab8d2e93c1e9512f90