added libsiftfast to the linking of ed_odu_finder
minor change in face_detector, added optional field to a configuration read
added optional argument to a configuration reading
commented some lines that were crashing the image processing, added some hardcoded values to make it work for now
improved the image pre processing, changed the way results are asserted to the configuration
minor change, changed the way the results are asserted to the configuration on the entity
added supports for multiple results under hypothesis group in the entity configuration. Some other changes
changed one output line so it prints just once instead of every time