Implemented automatic plugin instantiation on containers

* Added check for the instance object to avoid errors when the data-input-navigatino properly is not ser correctly on the container
* Added support for automatic detection of the data-input-navigation attribute on forms
* Moved ‘use strict’ outside of the function call (and added a rule on jshint to expect this)
* Added a better way for type checking
Adding ready.input-navigation.data-api method
Eliminating custom ‘toType’ method in favor of instanceof
Readme file updated.
Adding multi-dimension test file
First implementation of multiple dimensions
Merge branch 'develop' of https://github.com/mariuzzo/jquery-input-navigation into develop

Conflicts:
	README.md
	src/jquery.input-navigation.js
Merge pull request #12 from amhed/develop

Develop