Merge branch 'release/0.1.1' into develop
add lazyload
Merge branch 'develop' of https://github.com/ecomfe/saber-widget into develop
emitter arguments fixed
code style
bug fixed for `clearEvents`
add `.plugin` api
comment update
add plugin's base class
extend from class `Plugin`
add `zoom` plugin
add `masker` plugin
add `ImageView` Widget
add demo for `ImageView` widget
rename doc for slider widget
add some docs for plugin & widget
add contributors
bug fixed
improve
improve
add `zoomScale` attribute