feat(Complex UI Navigation): No more compultion of adding tab-index t…

…o navigable items.

Improved navigation in different UI scenarios.

feat(complex UI navigation schema): Navigation can be done on more di…

…verse kind of UI.

feat(API changes): New API's for pause and resume navigation is added.

API end points are changed and easier to use.

BREAKING CHANGE: API endpoint change

test(test): basic test case included

fix(navigation): build process with semantic release

BREAKING CHANGE: Navigation intelligence

closes amanboss9#3

chore(travis build): node version 6 and above

chore(dist): browser based lib files

docs(README.md): API for getting current component rendered to map th…

…e events accordingly.

build(Build v2.0.2):

docs(README.md): API usage for naviboard