issue#61 Introducing restrictions for working hours
issue#61 Adding property handler classes
issue#61 Source format
issue#61 Fix multiple task validation
issue#61 Introducing task types
issue#61 Adding default tasks at deploy time
issue#61 Defining upgrade process to add default tasks
issue#61 fixes: Added some exceptions for Validation + new duration method to TaskSession
issue#61 fixes: Regenerated
issue#61 fixes: Validation logic
issue#61 lunch-break Added new finder
issue#61 lunch-break Regenerated
issue#61 lunch-break fix
issue#68 Add css to TaskPortlet view
issue#69 A task not be possible to start in the future