Updates nupic.core to d006e070ecb5a0f1dc2ef7b55251bdeca95b0e84.
Updates nupic.core to e699d5ea1b63d51a4e8f6253af59dd2c11610362.
Updates nupic.core to ab6da795866eff2ff26d2df53c233fe9daaeb63c.
Updates nupic.core to 2866f3517976f3c9d3a5ccf8d5c883f91af59ad9.
Updates nupic.core to 55a9fd1e4621b2a08e6cab453229f24453c6107a.
Updates nupic.core to 0a86854fce9352ec6b3a0f6a2ab1339f83d3ab2c.
Merge pull request #1000 from numenta-ci/core-update-sha

Updates nupic.core to latest built SHA.
Remove OPF stuff in order to simply README instructions 

README should constain only "Get started" instructions.
Add CoordinateEncoder and GeospatialCoordinateEncoder
Clear output array in coordinate encoder before using it
Adding --coverage option to test runs.
Adding coveralls push to travis config.
Use assertTrue instead of assertGreater in tests
Fixed bash errors in travis config.
Use assertTrue instead of assertLess in tests
Using assertRaises as a function instead of context manager in tests
Merge pull request #1005 from chetan51/issue-988

Add CoordinateEncoder and GeospatialCoordinateEncoder
Merge pull request #1008 from rhyolight/add-coveralls-2

Adds coveralls support in Travis.
Header text updated after feedback
Downgraded info messages to debug as described in nupic/issues/857.