Remove unused metrics code from cpu example client.
Update the README with wiki links and reference to the client examples.
Merge pull request #125 from scottpurdy/examples

Updates to examples and README
Adds test to ensure external module asteval is installed and the expected version.
Adds more things to try in the README.
Merge pull request #128 from scottpurdy/master

Adds test to ensure external module asteval is installed and the expecte...
Merge branch 'master' into readme
Adds safe_interpreter module tests.
Merge pull request #129 from scottpurdy/readme

Adds more things to try in the README.
Merge branch 'master' of git://github.com/numenta/nupic
Fix broken test.
Import fix.
Merge pull request #130 from scottpurdy/master

Adds safe_interpreter tests
py.test-base test runner.

This requires some minor fixing-up of python namespaces to avoid namespace
conflicts with pre-existing py module.
Install py.test via pip during build
Remove dependency on nose
Implemented initial permanence setting and overlap computing
Implemented duty cycle modifications and overlaps/overlapsPct extraction
Moving requirements.txt and adding comments following feedback at https://github.com/oxtopus/nupic/commit/fb23e3558f7bda214ba424ae26bdced47f0419a3#commitcomment-3705875
Moving run_tests.py to bin/ to match post-build testing instructions in README.md