NXP-12634: better handle csv and pdf view mode
NXP-12059: add notification template;+ list also task where the current user is a delegated actor
NXP-12611: add pdf merge operation
NXP-12487 Add label for Seam concurrency related messages
NXP-12636: display warning message to user when doc not found or invisible
NXP-12611: append in first place the pdf blob from context if exists
NXP-12628: don't hard code contextPath when accessing icon resources
NXP-12059: list also tasks assigned or delegated to groups
NXP-12368: version the REST API; use '/api/v1'