Added LIndex method for dashboard_cache.

Useful for retrieving first (last pushed) element from list.
Added Arduino api for retrieving Redis data.
Added comments to Arduino API.
Adapted @route designators for new Bottle.
Removed old WiFly library (obsolete).
Added new Arduino C++ framework.
Rotate image 180 degree before sending it to face recognition.
Merge branch 'master' of github.com:ami-lab/AmI-Platform
Changed canvas size according to room size.
Merge branch 'master' of github.com:ami-lab/AmI-Platform
Fixed typo.
Merge branch 'master' of https://github.com/ami-lab/AmI-Platform
Undo adding arduino routes.
Fix syntax error.
Fix syntax error.
Fix ltrim. Call it in api, not room-position.
Add results from head_crop_dataset.
Remove results from head_crop_dataset.
Remove Arduino routes
Use position_shape and draw_lines boolean from Constants.