Use a InputProcessor for Camera movement
Make Camera movement last has long has the movement keys are pressed
Camera switches character focus smoothly
Camera move by one whole tile with movement keys
Remove unused method
Unset all proper variables in DungeonCrawlCamera#terminate_current_movement!
Added some TomDoc
Check existence of all needed variables
Rename #update_camera_focus! to #update_camera_position!
Merge pull request #45 from rafaelgonzalez/camera-input-processor

Camera input processing