Pep8 (80 chars) and plone.api-style imports
add a field for image quality to the configlet

Conflicts:
	src/plone/app/imaging/interfaces.py
Make the configlet work, add getQuality for registration of utility providing future plone.namedfile.interfaces.IQuality

Conflicts:
	src/plone/app/imaging/interfaces.py
	src/plone/app/imaging/scaling.py
Test the quality setting in an integration test

Conflicts:
	src/plone/app/imaging/tests/test_properties.py
Test that lowering quality makes an image smaller
fix test
require plone.namedfile 2.0.1
quality should be 1-95 (http://www.pythonware.com/library/pil/handbook/format-jpeg.htm)
Added documentation on re-scaling existing scales.
Depend on plone.namedfile 2.0.2

...as 2.0.1 was released without this fix
Fix import of getSite().

From zope.component.hooks instead of z.app.c.hooks,
so it works with newish PLone sites.
Don't depend on plone.namedfile

And fix import of interface for utility.