New: Added Admin page (fixes #30)

Fixes #30

Following are the changes made:

* Supports save and reload of config.
* Picks up the config with a higher priority as mentioned in the README.
* Runs with ```grunt admin```
* Uses react and coffeescript

Any suggestions on how to go about on the below points?

* Support of https ( Need certificates. Related to #58? )
* Restart of other servers on save. (Should ```example.coffee``` be made a module?)
* Graph ( depends on #10 )
Coffeeify was breaking (not able to find module ```through```, even though it was part of each and every node_modules, debugged it for a day) with the transform used. On exploring few projects using cjsx, using the latest version (version 2) of browserify along with the transform worked perfectly well.