Added sample files for database and smtp settings. Updated .gitignore.
Added simple email notification each month at specific day ( currently 20 ). All email related configuration moved to yml files. Added sample files to git and real files to gitignore.
Added migrations and updated models to prepare to notifications settings realization.
Added scaffold for settings.
Fixed smtp_setttings value in .gitignore.
Added settings controller and simple layout for it.
Added enabled column to notification settings. Updated seeds.rb
Added forgotten assets and some tests for  previous commit.
Finished layout for notification settings form. Changed datetime column to separated day, hour and minute columns into notification_settings table. Updated seed file and related model.
Changed deploy server name. Updated task to copy configs.
Fixed layout for edit tariff page.
DMY datetime format separator changed to hyphen from dot.
DatePicker input made as a custom input control with embedded datetime localization.