v1.6

[JoryHogeveen]

• [x] Feature: Lock meta boxes #9
• [x] Feature: View as links in user management page #12
• [x] Enhancement: Better admin bar handling when set to hidden by user #4
  • Also adds an option to hide/show our toolbar when now view is selected and the admin bar is not shown.
• [x] Enhancement: Better handling for permission errors #10
• [x] Compatibility: with members plugin to show our custom capabilities
• [x] Compatibility: PHP 5.2 (WP minimum)
• [x] Add info links
• [x] Refactor whole backend into multiple classes