ENYO-2577: add tootltip to tab bar
ENYO-2577: css for tab bar tooltip
ENYO-2577: add tooltip for tab bar samples
ENYO-2577: re-indented
ENYO-2577: improve code lisibility
Merge branch 'ENYO-2577' of github.com:enyojs/onyx into ENYO-2577
ENYO-2577: fixed typo
Merge pull request #179 from enyojs/ENYO-2577

ENYO-2577: add tooltip to tab bar