remove unused imports in python build_system files
tp review: use anonymouse variable in for loops

use _ in for loops where the value is not used
remove pointer

NB was reporting error, removing the pointer
was: *tps.values()
now: tps.values()
examples/prediction review

mostly unused imports
review examples/bindings

unused imports, anonymouse vars
sets.Set is deprecated, use built-in set

as for python 2.6, sets.Set is replaced by builtin set()
experiments/opf reviewed

remove unused imports,
keep the NUPIC specific, even if unused (commented out code)
Merge pull request #178 from breznak/netbeans-code-advices

Netbeans code advices for C++ and Python
Revert "use python2,"

This reverts commit 0b23bb74fb9cc041befa8fc5ee48a79077d76e05.
Append to PATH rather than setting it to use old _PATH that may be outdated.
Merge pull request #184 from scottpurdy/fix-build

Fix build
Merge remote-tracking branch 'upstream/master' into publish-artifacts