Merge pull request #15 from jim-v/master

Publishes images that have been deemed interesting by the fiducials libr...
Merge pull request #16 from jim-v/master

Can optionally turn off publishing of tf.
Merge pull request #17 from jim-v/master

Optionally turn off publishing of markers
Updated for camera with black tape on it.
Merge branch 'master' of https://github.com/jim-v/fiducials_ros
Fix camera correction and nav launch
Merge remote-tracking branch 'upstream/master'
Add point grey nav launch files
Working launch files for nav
Merge remote-tracking branch 'upstream/master'
After last round of tweaking at the Dojo.  Obstacle avoidance is not
quite right yet.