If paths are relative, make them relative to cue file.
* morituri/common/task.py: * morituri/image/image.py (added): Add an object for handling an Image based on a .cue file. Create a Task for CRC'ing the whole Image. Make the example use this new task instead.
publicize CueFile.tracks Add a method to get track lengths * examples/readcue.py: Use it.