initial coverage for renewals
refactor renew method
add days to due date
adjust logic
self not @reservation
and return
renewal spec
Merge branch 'development' into 674_renewals
skip renewal validation
fix renewal validations..
adjust ability.rb
tidy up spec
find_renewal_date instead of maximum_renewal_length_available
renew box
fixes to renewals suggested by dgoerger
Merge pull request #748 from YaleSTC/674_renewals

674 renewals