BUG: Fixed wrong return value. It was always returning the id it received. In case of global ids, it should return the id of the point/cell that has the given global id.

BUG: Added support for adding a selection id on all processes. When using global ids, it is not possible to specify a process.

BUG:Fixed initialization of uniform variables in depth peeling when the program shader was not in use during the rendering of the first peel.

ENH: Added KWSYSPE_DEBUG macro to print debugging trace information.  Added TODO comment explaining why process execution can still hang when a grandchild keeps the output pipes open.

BUG: fixed incorrect variable initialisation, which was causing compiler warnings and probably incorrect behaviour

ENH: Exodus reader now takes into account progress of the append filter

BUG: Restoring fix for bug#797 that was removed by revision 1.62.  Setting precision(11) on the stream as soon as it is opened to make sure all ascii values are written with sufficient precision.

COMP: Put the accessor for the kdtree back to fix compile errors. In the future, the kdtree data structure should be separated from the algorithm.

BUG: Added custom SetMultiGroupDataInformation(). A multi-group data object should have a valid information object at all times.

STYLE: Improved documentation and comments.

BUG: Re-architectured part of class to avoid calling Modified() during RequestData(). Although Kdtree is an internal variable the class was exposing it through a Get method. Changed such that Kdtree is not exposed but there is a way of setting the tree through SetCuts

BUG: Replaced this->SetPointArrayStatus() with this->MetaData->SetPointArrayStatus(). Called method on self causes Modified(). Algorithms are not supposed to call Modified() during RequestData().
STYLE: Fixed various style issues.