Added support page metadata for questiongroups
Collections encapsulated in domain layer
QuestionCount by questionnairdefintion started
PageMetadata creator improved
Buttons next and previous added dinamically depends on page number
Added more fields
database schema updated
database schema changes
Groups randomization support started
on progress
progress on randomization
randomization support on progress
Randomization support on progress
Randomization on progress
Randomization on progress
Progress on randomization
Experiments with eclipselink batch
more experiments
Added method findQuestionInList
Few tests fixed