README updates:
README updates:

- removed inline OPF examples in favor of links to Using Nupic wiki
  page, which contains examples, tutorials, and screencasts
- replaced ambiguous and non-executable example of running tests with a
  line-by-line runnable example of running tests from make
- added note about anomaly detection capabilities to project
  description

breznak/nupic,breznak/nupic,breznak/nupic