refactor log functions into SafeLog module
move ssl_support into folder
remove attr_accessor infiltrated in copy-paste
extract REST actions to RESTActions module
new method force_ssl to set use_ssl to true
refactor api_key behaviour to a module
add new class method set_api_key

Usage:
  class Client < LogicalModel
      set_api_key(:app_key, 'secret')
  end
move :enable_delete_multiple attr_accessor to RESTActions module