add MIT license
remove scipy dependency
defer loading yaml module until actually needed
serialize using python json library (which is valid YAML)
defer scipy import until needed
PY3: convert print statements to print functions
PY3: rename file
PY3: fix syntax error
PY3: import works in py2 and py3
PY3: remove pickle from ROS compatibility layer
PY3: fix string encoding issues
PY3: correct StringIO import
PY3: MultiCameraSystem.get_names() returns list of camera names
Merge branch 'py3'