- This small header file contained a few unrelated typedefs.
Move those typedefs to the classes they relate to. This
**does** mean that some consumers need to #include something
else instead.
- Use type names more consistently.
Editorial: why are **pages** responsible for creating the jobs?
Now uses a qreal for progress instead of current and total
Also added a finished() signal because determining whether the queue is
finished should not be done by comparing a qreal with 1.0 as this is not
precise.
