remove old rvm config and add new. Freeze gems at 1.8.7 versions
fix gems at versions that work for ruby 1.8.7
latest 2.3 rails
only parse policy params if they exist
render a 'failed' html bit if data extract fails to create
point out that latest rubygems may not work under 1.8.7
remove metric_fu from Rakefile since it is now handled by metrical gem