Merge pull request #608 from scottpurdy/pylint

Moves pylintrc to a more useful location.
Replace try blocks with self.assertRaises
Formatting
Better documentation
Reordered imports
Removed empty return
Fix identation
Merge pull request #611 from chetan51/update_readme

Update installation directions in README
Fix formatting
Fix formatting
Formatting
Moved over lang_py_net_test from Grok trunk
Started converting to unittest format
Convert asserts to assertEquals and remove unnecessary import
Remove unnecessary imports
Fix pylint warnings
Better import
Removed empty test
Merge pull request #600 from chetan51/test_knn_classifier

Add KNN Classifier regression tests
Moved over lang_py_spec_test from Grok trunk