1.22.0
Resolves checkstyle errors for naked-objects null-object object-mother object-pool observer queue-load-leveling (#1082)
#190 Remove urm plugin
#1021: Fix checkstyle warnings by changing the license header template (#1027)
#91 Added skeleton for naked-objects example using Apache Isis SimpleApp archetype
#91 Added README
Fix naked objects thesis url
Update license headers