added classNames; refined disappear behavior

6.1.1 Refinement on disappear dragged element (#32)

* refined behavior on disappeared source item

* install 'prop-types'

* added classnames to various elements. Also rearranged demo a bit.

fix iphone-zooomed-screen issue

6.1.0 fix zoomed-iphone issue (#30)

* fix issue with iOS zoom. Also make scrolling smoother

* update version

* fix readme

Render props, automatic highlighting

6.0.0 Add ability to use as render prop plus more (#29)

* add render prop. also add dragData to onDrop event.

* updated readme

* Added highlightClassName property

Scroll page when you drag past the edge

5.2.0 - add scrolling at edges (#28)

* fix unpleasant firefox highlighting of dragged elements

* Add ability to scroll window at edges

* compiled code

* v 5.2.0

added disappearDraggedElement prop

Release 5.1.0, add disappearDraggedElement prop (#27)

* initial switch to absolute and always drag clone

* maybe going to try to remove the DragDropGhost component

* remove dragDropGhost element

* test w div

* Remove DragDropGhost. Change to fixed position.

* returnToBase property removed.

* change sourceElem to containerElem

* add sourceElem property to drag data

* upped version number and rebuilt

* cleaned up demo files, removed some unused state properties.

* doc tweaks mostly

* updated compiled files

* linted

* had an error in the demo page

* release 5.1.0 adds disappearDraggedElement prop.

* readme update

Changed to use position: fixed

Release 5.0.0 - Change to position fixed (#26)

* initial switch to absolute and always drag clone

* maybe going to try to remove the DragDropGhost component

* remove dragDropGhost element

* test w div

* Remove DragDropGhost. Change to fixed position.

* returnToBase property removed.

* change sourceElem to containerElem

* add sourceElem property to drag data

* upped version number and rebuilt

* cleaned up demo files, removed some unused state properties.

* doc tweaks mostly

* updated compiled files

* linted

* had an error in the demo page