PrismConcurrentRequest refactored and fixed. Small fix in Brother class
PrismFeedScheduleTest refactored
NewPrismProcessUpdateTest and OptionalInputTest refactored
PrismFeedScheduleTest refactored
Merge pull request #36 from pisaychuk/master

PrismConcurrentRequest,  refactored and fixed. NewPrisProessUpdateTest and OptionalInputTest refactored. Small fix in Brother class