bump version to 0.2.0.

Merge pull request #23 from RichardKelley/model_reloc

push the updated config setting to the notebooks

GenerateAction test is passing now.

Deprecated tests that rely on old XML-based factory system.

Updated tests for control nodes to reflect the new constructor convention.

Updated some tests.

Updated markdown doc files. Still adding documentation.

cleanup.

Tentative support for automatic default names on all the main node types. Needs testing still.

Cleanup file renames.

LMCompletionCondition now uses the new config format.

__init__ files updated.

LM-based action nodes now use the new configuration formats.

Rewrote configs to split out model and TreeNode configuration objects.