1.16.0
Update URM Version to 1.4.4 and regenerated all puml files
Update license headers
#161 - Publish Subscribe Channel realisation.Heavily based on iluwatars Message Channel implementation (#143).
Work on #190: urm/puml updates * added pumlid where it was missing and possible * removed pumlid where it generated a bad image * regenerated some incorrect puml's * added 'left to right direction' puml prefix to some diagrams to improve the automatic layouting
Reach milestone 1.16.0