Add pie and doughnut charts
Improve menu appearance
Remove 'Dashboard' title
Move everything related to appearance to the template
Homogenize the look of the widget
Remove all remaining old media files, add new logo, new simple about page
Add support for full-screen dashboards
Dashboard buttons and navbar tweaks
Add dashboard ordering
Improve admin interface
Optimize background image, remove unused font
CSS tweaks
Add expression widget
Add description fields and ordering to datasources model
Update line chart template