Arvados » Arvados Workbench 2

As a user I would like to see notification from the system
so that I will be informed about actions

Acceptance criteria:
- notification icon in top right corner
- notification counter (number of new notifications)
- expandable popup with last notification
- "mark all as read" link
- time information when notification appeared
- clicking on notification will move user to location that is affected
- <User name> uploaded collection <name> to Project <name>

Notifications:
- <User name> shared <name> with you.
- <User name> shared <name> to group <group name>.
- <Process name> is completed.
- <Process name> failed.