- Fixed modals

DIV-container #main-aside (containing #main and #aside) has been removed from the page layout.
base.css has been modified accordingly.

- Input file with different styling for regular and required

- Support native upload button

- Meta-Navigation has been changed: 
  - Popup for user settings menu (top-right) removed
  - Logout is now just a link

- Updated style for multiselect widget (adg-combobox)
- Styles for validation errors
- For usage with SmartDesk GUI

Used in:
- smartdesk-gui

Initial commit