Update version to 1.7.0-SNAPSHOT.
Update version to 1.7.0-SNAPSHOT.

YongHuiLuo/Android-ObservableScrollView,Balavenkatesh/codegeek,Balavenkatesh/codegeek,ksoichiro/Android-ObservableScrollView,YongHuiLuo/Android-ObservableScrollView,ylfonline/Android-ObservableScrollView,ksoichiro/Android-ObservableScrollView,ylfonline/Android-ObservableScrollView,ylfonline/Android-ObservableScrollView,ksoichiro/Android-ObservableScrollView,ksoichiro/Android-ObservableScrollView,YongHuiLuo/Android-ObservableScrollView,ylfonline/Android-ObservableScrollView,Balavenkatesh/codegeek,YongHuiLuo/Android-ObservableScrollView,Balavenkatesh/codegeek