Removed remaining LPF code and updated antiquated tests based on LPF code.
Fixed comment explaining use of RecordSensor.py
Modified travis.yml file to stop running deleted test
Merge branch 'master' into iss389

Conflicts:
	nupic/frameworks/opf/exp_generator/__init__.py
	nupic/frameworks/prediction/GUIs.py
	nupic/frameworks/prediction/callbacks.py
	nupic/frameworks/prediction/experiment.py
	nupic/frameworks/prediction/experimentdeschelpers.py
	nupic/frameworks/prediction/helpers.py
	nupic/frameworks/prediction/postprocess/__init__.py
	nupic/frameworks/prediction/postprocess/classificationstats.py
	nupic/frameworks/prediction/postprocess/inputpredictionstats.py
	nupic/frameworks/prediction/postprocess/knnregressionstats.py
	nupic/frameworks/prediction/postprocess/linearregressionstats.py
	nupic/frameworks/prediction/postprocess/ngramstats.py
	nupic/frameworks/prediction/postprocess/poormanstats.py
	nupic/frameworks/prediction/postprocess/postprocess.py
	nupic/frameworks/prediction/postprocess/spstats.py
	nupic/frameworks/prediction/utils.py
	nupic/regions/CLARegion.py
	nupic/regions/CLARegionSimple.py
Merge pull request #964 from jaredweiss/iss389

Issue #389: removing old LPF code