Small formating.

Mainly trailing slash removed.
Added synthetic stop propagation by return false and event-listening by custom elements.

Resolved #12
Fixed tested selenium app to new event listener.
Lifecycle render, willReceiveProps, and shouldUpdate.
Core lifecycle tested.
Browser life-cycles implemented.

Fixed #13
Merge pull request #20 from cleandart/issue-fixing

Issue fixing, lifecycle, synthetic stop propagation