Changed function definitions to remove redundant calls to connections.cellsForColumn
Fixed failing tests due to change to temporal_memory.py
Made requested code style tweaks
Updates nupic.core to a3a22163a95b84beb5fda20c847a686a84da7514.
Merge pull request #1261 from numenta-ci/core-update-sha

Updates nupic.core to latest built SHA.
Merge pull request #1260 from simjega/issue-1259

Change function definitions to remove redundant calls to connections.cellsForColumn
Merge branch 'master' of github.com:numenta/nupic