Fixed MetricConfigurationsController before_filter order
Fixed ReadingsController before_filter order
Fixed repository_step for new factory name for range
Fixed RepositoriesController before_filter order
RepositoriesController ownership checking for new and create refactored

project_owner? is semantically more correct

Signed off by: Guilherme Rojas V. de Lima <guilhermehrojas@gmail.com>
Fixed back behaviour for new NativeMetric
Redirect for Configuration ownership now forwards for the show view

Signed off by: Guilherme Rojas V. de Lima <guilhermehrojas@gmail.com>