Simplify API do not require treeview as param if not needed
Set flags for new nodes in a int to improve readability
Remove redundant dtsgui_item_xmlcreate
Rev eventhandler data in constructor
Unref eventhandler data in destructor
Add select method to treee window that sends Select event
Select and open new node
Panel callback returns int 0/1 to control Skiping event
Reset button id to reflect "DTS" value
Set a_node to reflect active node to allow "Undo" button to work
Add OnButton handler to tree window
Add wxTE_PROCESS_ENTER to xml textboxes
Eliminate possible mem leaks
Add conditionals arround obj ref/unref
Merge pull request #46 from gregnietsky/master

API / Memleak fixups