Lots of updates

Pagination, Filters, Database seeder using Faker, Notification
messages, etc.
Finished members and groups management
Completed settings module

Also fixed some calls that would break usage of repositories, and make
them separate methods…
Removed redundant css classes
Switched from input type submit to button type submit
Make settings menu active when on settings page
Merge pull request #3 from pajcho/development

Merge all changes from development branch