don't use textstyle bold as default for tab indicator
Aesthetics & protected clipping
#3522 added opt padding.
added optional font size
added suggested commit for JakeWharton lib

https://github.com/JakeWharton/Android-ViewPagerIndicator/commit/6da5e2640253ae21edd1121b78f81bf8b82a7663
#3601 increased max width
OnTabSelected listener for our eyesight
Invoke onTabSelected before tab changes
close #696
updated to latest build tools
Merge branch 'master' of github.com:eyeem/Android-ViewPagerIndicator into HEAD