COMMON1: Add YEARDIFF function
Merge branch 'master' of https://github.com/ramesesinc/incubation
Merge branch 'master' of https://github.com/ramesesinc/incubation
Merge branch 'master' of https://github.com/ramesesinc/incubation
Merge branch 'master' of https://github.com/ramesesinc/incubation
Merge branch 'master' of https://github.com/ramesesinc/incubation
Merge branch 'master' of https://github.com/ramesesinc/incubation
Merge branch 'master' of https://github.com/ramesesinc/incubation
Merge branch 'master' of https://github.com/ramesesinc/incubation
EXTENDED: save "signature" info
ActiveWorkflow: support signature info
EXTENDED: workflow: eval support
Merge branch 'master' of https://github.com/ramesesinc/incubation