* Fix autocomplete for special cases
- Send the currently focused dynamic binding to tern instead of the entire editor value
* Add tests for TernServer methods
- Make request callback a seperate so that it could be testable
- Add tests for getFocusedDynamicValue, buildRequest and requestCallback
* Keep input and expected values together
* Refactor CodeMirror component to be more configurable and testable (hints, markings)
* Update the existing datasource path component
* Better text highlighting for JSON fields
* Case insensitive hinting in autocomplete