Fixing the drone face tracking

Fixing misspelling in the window device connection property and removing opencv device since it causes the example to fail.
Merge pull request #14 from ibjhb/master

Fixing the drone face tracking
Merge branch 'dev'

* dev:
  Update .travis.yml
  Move Driver#setupCommands to core
  Update commands to match new Driver format
  add coverage report
Bump version to "0.13.0"