Issue 179 and 180: Added dataFilter option to filter the returned data from jQuery.ajax
Issue 184: If the node id is 0, the id mapping is incorrect (thanks to Ika Wu)
Issue 132: Skip keyboard handling if focus is on input element (thanks to Bingeling)
Issue 190: selectNode should not toggle
Issue 192: Added keyboardSupport option
Issue 181: Added tree.dblclick event
Issue 196: localStorage doesn't work in Safari private browsing
Include jquery.cookie.js in examples
Updated requirement for generating docs: Jinja2==2.7.1
Fixed li style on webkit
Issue 195: added more space to dnd after the last element in the tree
Moved code to HitAreasGenerator
Changed variable name to is_already_folder_node
Merge branch 'master' into dev
Added issue 203 to changelog
_getDataUrlInfo: add selected_node parameter
Added onLoadFailed option to the docs
Updated tree graphics docs
Fixed styling of appendNode docs
Fixed tree icon docs