s/\\mixed[]/mixed[] as of @staabm's suggestion
Merge pull request #25 from Roave/feature/backend-ui

Backend UI draft
Importing `DependencyWheel` from https://github.com/fzaninotto/DependencyWheel
Experimenting with the dependency wheel
DependencyWheel directive
Including the DependencyWheel in the main inspection view
Including files required by the dependencyWheel
D3.js is required in order for the dependency wheel to work