Added jbpm-human-task-audit dependency management
updated errai to 2.4.1.Final

(cherry picked from commit 32a3e56b2b28551499e7b6010aab66aeb4909e6d)
- removing jbpm-form-services dependencies
BZ-1018535: kie-commons and uberfire merge
BZ-1018535: complement to kie-commons/uberfire merge

Conflicts:
	pom.xml
- adding com.sun.xml.bind:jaxb-impl:2.2.5
Revert "- adding com.sun.xml.bind:jaxb-impl:2.2.5" (commit 847ccc5e8159162b66b7c1ce5be33ad19b60c930)
Replace uberfire artifacts with uberfire BOM
update script copying uml diagrams into docs to the new kie api
(cherry picked from commit 031a6af47c605d7f4c2d354d09906ba7bef37425)