Started porting all tests to rSpec.
Fixed notification_settings spec.
Tests for Report rewritten in a RSpec format.
Also added custom matcher to replace usage be_within for float with more short matcher.
Tariff tests rewritten to specs.
Added specs for Matric and Tariff controllers.
Added specs for Welcome controller.
Removed whole news scaffold.
Converted tests for Report to specs.
Changed routes for Report: now it routes only index and show methods.
Updated sign_in procedure for controllers specs with helper method.
Rewrote SettingsController test in a RSpec format. All test migrated.