Algorithm for the callback function of the threshold slider
Minor fix

Fix the tests
Implement the callback of the threshold-slider
Implemented new thresholdslider-function

- Deletes fragemented graphs
- Doesn't need presorted arrays
Use the state-name as reference in the json
Fixed bugs in callback for threshold-slider
Remove logs
Merge branch 'Threshold-slider' of https://github.com/erwinvaneyk/crawljax into Threshold-slider

Conflicts:
	plugins/crawloverview-plugin/src/main/resources/index.html