This PR adds a new {{template-anchor}} component. This component lets you specify a 'href template' in a handlebars like format instead of a normal string href. This template will be interpolated with the contents of a vars="" attribute.
Also contains code to add an extra UI Setting to be able to store a template to be used for this anchor in localStorage
- Maintain http headers as JSON-API meta for all API requests (#4946)
- Add EventSource ready for implementing blocking queries
- EventSource project implementation to enable blocking queries for service and node listings (#5267)
- Add setting to enable/disable blocking queries (#5352)