- applied patch for drag&drop in Watch pad from http://community.sharpdevelop.net/forums/t/9320.aspx
- fixed NullReferenceException in ValueNode if either Watch Pad or LocalVarPad are not opened (added comments)
git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/branches/3.0@3962 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61