Update doc/sphinx/source/tutorial/reporting.rst

This should be cover, not header_right here.
Update install.txt

Create a note after my experience with sqlalchemy beta version being picked up.
Update doc/sphinx/source/doc/schemas.rst

Making this match what worked when applying to the tutorial project.
Update doc/sphinx/source/tutorial/reporting.rst

This was using the local package file to look for the covers, but they are from the file/storage type which will be in CAMELOT_MEDIA_ROOT.
Merge branch 'master' of https://github.com/dannystaple/Camelot
work to support sqlalchemy 0.8 is almost done