SP: Assert that number of input dimensions equals number of column dimensions
Issue 759: remove grok from swarming libraries.

This corrects issue 759.  References to grok renamed to nupic.  References
to Grok either removed or renamed to Nupic.  Passes unit tests locally, also
ran locally on sine-prediction and hot-gym swarms.
Removes StreamDisappearedError

I went ahead and removed this, as it's not being raised anywhere, and I removed the check for it in my previous commit
remove import of StreamDisappearedError

Forgot to remove StreamDisappearedError during last commit.
Merge pull request #925 from moorejpdx/grok_cleanup_for_swarming_libraries

Grok cleanup for swarming libraries
Display correct input file name.

rec-center-hourly.csv  instead of Balgowlah_Platinum.csv
Removed empty line
Merge pull request #929 from evelynmitchell/master

Minor cosmetic correction to hot_gym
Updating to newest nupic.core
Merge pull request #930 from rhyolight/new-core

Updating to newest nupic.core
Merge pull request #879 from chetan51/issue-878

SP: Assert that number of input dimensions equals number of column dimensions
Adding OSX to build matrix
Travis config cleanup
Starting mysql
top level implicit build matrix with local osx exlusions
Adding back top-level compilers to matrix
Removed old stuff and added a comment
latest PyMySQL to avoid unicode issue in swarming
Merge pull request #935 from rhyolight/osx-travis

Adding OSX to build matrix
Merge pull request #937 from surge-/issue883#2

latest PyMySQL to avoid unicode issue in swarming