watching - autocompile sources, run tests and reload the app

[kdabir]

Not sure how feasible this would be, but if files put in src dir can be compiled on change and, test to be run automatically and app could be restarted, that would be great. Same applicable to files put in test, just run the tests again.

be careful about the auto-save IDE like idea. which will keep on saving file while typing which essentially means the WIP code will the picked up.