removed dependency to jbpm-docs
(cherry picked from commit d642867c0d51f466626879097ac072f216e241a8)
BZ-1032206 - NPE when accessing tasks using a RuntimeEngine without persistence
BZ-1026384 Using (user) classes in KJar/deployment for serialization
(cherry picked from commit 2a784d388c056a436d93250a2ffabe60e7fbbd03)
JBPM-4174: Line 107 of build.xml of jbpm-installer refers to
"postresql" inseatd of "postgresql"
JBPM-4175 - Sub Process Entry/Exit scripts don't run
- BZ-1033694: initial implemenation to support dueDate and Delay in HT Handlers