Setting up the tooltip tests for issue #13480 changes.

- recompiled bootstrap for the process
Updated the tooltip plugin to add WAI-ARIA attributes to associate to element
Cleaning the style of the tooltip unit tests added.

- Followed the coding styles.
- Recompiled everything.
Updated the tooltip plugin to add WAI-ARIA attributes to associate to element
Cleaning the style of the tooltip unit tests added.

- Followed the coding styles.
- Recompiled everything.
Adding the addditional unit test