Changed Coupon Validation Logic so that it MaxUsage only fails if both Unlimited and maxUsage are true.
Changed Coupon Validation Logic so that it MaxUsage only fails if both Unlimited and maxUsage are true.

git-tfs-id: [https://tfs.caes.ucdavis.edu:8088/tfs/DefaultCollection]$/CRP/Trunk/CRP;C9479

ucdavis/CRP,ucdavis/CRP,ucdavis/CRP