Pinball

++++++++++++++++++
* tune UI time out value
* make 80 as email port if ui host is provided
* pydot2 -> pydot as pydot fixed incompatibility with pyparsing > 1.5.7

++++++++++++++++++
* more precise parser caller
* flexible worker/ui communication protocol
* display worker node in UI

++++++++++++++++++
* fix pinball_config.py list/tuple issue

++++++++++++++++++
* change pkg version spec from '==' to '>=' in setup.py

++++++++++++++++++
* pydot -> pydot2.
* upgrade qds_sdk and dateutils version.

++++++++++++++++++
* Fix workflow import util to be more fault tolerant.