Proposal ModifyFeatures-tools.

 * Independent styles of tools and vertices.
 * Independent actions for handlers to rotate resize ...
 * Alows delete clicking an tools
 * API compatible with OL ModifyFeature control.
Declare layerListeners.
Now gadgetName is toolName

and compacting the use of some `this`
If styles.point drags virtual points instead real.
Deprecate ModifyFeature-patch.js

(use ModifyFeature-tools.js)
Rename examples modify-feature-tools.html

set only as modify-feature.html
Adjustments on OL compatible mode RESHAPE.
Simplify the code <esc> key treatment.
Events compatibly with version 2.11 or lower.
Update section of drawing tools improvements.
Update GitHub links.