Merge pull request #45 from chestnutchen/master

add handler for fail ERROR message
make mobile pattern required
add test cases
remove unused
make constants module more robust
Merge branch 'dev' of https://github.com/ecomfe/bat-ria into dev
update changelog
fit new code style
add .eslintrc
add QuickTip
add QuickTip
fix wrong removal
fix syntax error
allow result to be a empty object
remove hide even listener in QuickTip
fit new code style
fix some notation
Fix #47 and Fix #48
add listchange event and support prepare when loading data async
revert Quicktip hide event
add some optional config to Image
fix some bug