* removing XPController, XPNodeSetIntent, Extent
* cleanup
* cleanup
* context node expr
* step cleanup
* grammar change, cleanup
* grammar revert
* adding TDTemplateEngine
* auto generating XPEGParser from unit tests. finally
* tests
* discard ::
* -descs
* XPDependencies
* . path expr works!!!
* work on path expr, . still works
* .. expr works!
* NodeInfo
* tests
* path expr ../. working now!
* lots of improvements
* LastPosFinder
* AxisEnum
* NodeSetValueEnum
* using [NodeSetValue enumerate] correctly