Variable enhancements

Variable enhancements
 * typing map for changevariable to <String,Object>
 * added variabletypes Object[] and Map<String,Object> where Objects can be Strings,Integers, Longs, Floats, Doubles, Booleans and Paintables (reference on client side translates to corresponding server side component by terminal)
 * Note, multilevel datastructures still not supported (Array or Map inside another), needs #3765

fixes #3756, #3757

svn changeset:10023/svn branch:6.2