Upgrade AA to 2.7.1
Upgrade ABS to 4.3.1
add sample code parameters
remove navbar and add github ribbon
scroll to top on error #61
Merge remote-tracking branch 'jerem/gh-pages_upgrade_aa' into dev-pages
Merge remote-tracking branch 'jerem/gh-pages_abs_upgrade' into dev-pages. close #72
update maven android plugin to 3.6.0. closed #88