[coopr-647-tolltips] [COOPR-UI CreateCluster Page] templates list shows template label instead of template description; template description is shown in tooltip

According to: https://issues.cask.co/browse/COOPR-647

Browser tooltips are used instead of bs-tooltip. Reasons:
1. bs-tooltip is not able to add tooltips for option tag. 
2. Browser places tooltips near the mouse pointer.
`option` element must have a textNode child. `label=` attribute is optional. You need an `ng-bind=` here.