Use libui's timer

[mischnic]

Closes #92
Closes #93

[parro-it]

I'll add a new 0_3_0 branch with a tricking PR as we did with version 0.2.0,
You'll have to merge this PR into that branch.

[parro-it]

I merged 0_3_0 branch, and add changes to include the hack to fix on Node 10.
But there is a problem with setTimeout. If you click the button on event-loop example two times in a second, clearTimeout is executed successfully and the running prop setted, but the callback is executed anyway when timeout expires.