added Vinay as author to title.xml
removed comments
outsourced Denominator, Numerator, and Value

(declarations, installations, table entries, pictograms)
to MatricesForHomalg, HomalgToCAS, and RingsForHomalg v2013.07.12
LocalizeBaseRingAtPrime now sets globalR!.PartialQuotientRing

to have a unique AssociatedComputationRing for localizations
of the base ring at different primes