Fix a few bugs, add some tests, improve Job/Config
Fix a few bugs, add some tests, improve Job/Config

* Implement support for correctly comparing jobs (in/eq/neq)
* Test that jobs can be created, compared, stopped

YongchaoShang/nutch-python,sujen1412/nutch-python,memex-explorer/nutch-python,sujen1412/nutch-python,chrismattmann/nutch-python,chrismattmann/nutch-python,memex-explorer/nutch-python,YongchaoShang/nutch-python