[FUNC] add open, close and isOpened methods
Merge branch 'master' of github.com:traex/ExpandableLayout
Update README.md
[FUNC] Add ExpandableLayoutItem and ExpandableLayoutListView
Merge branch 'master' of github.com:traex/ExpandableLayout
Update README.md
[README] change demo gif
Merge branch 'master' of github.com:traex/ExpandableLayout
Update README.md
Update README.md
[FIX] Fix NPE when scrolling
Merge branch 'master' of github.com:traex/ExpandableLayout
[FUNC] Throw exception if wrong OnScrollListener