Double click problem

On 'mouseup' listener, there is not any timeout for one click hence double click can never be invoked.
I'm talking about this page :
https://github.com/anvaka/VivaGraphJS/blob/master/src/WebGL/webglInputEvents.js

I think there should be a 400msec timeout for one click, if another click happens then double click will be invoked, in other case one click will be invoked.

Start in src/WebGL/webglInputEvents.js and inspect the 'mouseup' listener and its click handling. Reproduce single- and double-click interactions, then verify that each gesture triggers the appropriate event without the single-click firing prematurely.

Written by the indexing model from the issue text.