Update to phlex 2 beta

[sethhorsley]

This is updating phlex to version 2. There were quite a few changes needed

[cirdes]

you already are on Components directory, it means that you can use only Base make it less verbose

Components::Docs::ComponentsTable < Base

or even better:

module Components
  module Docs
    ComponentsTable < Base
    end
  end
end

[cirdes]

is it useful?

[cirdes]

fixed by #128