Adding tests for XML parser node
Removing unreachable catch blocks
Fixing tests by clearing out the node registry between tests.
Merge pull request #320 from hbeeken/xmlparser-node-tests

Adding tests for XML parser node
Using path.sep rather than "/" so tests run on windows as well as linux
Merge pull request #325 from hbeeken/fix-registry-tests-for-windows

Using path.sep rather than "/" so tests run on windows as well as linux
Add node add/remove/enable/disable apis to registry