WEB-2846 : deleteProcess(long processDefId) does not delete instances on
cascade
update login.jsp footer
WEB-2902 - Document is not saved within pageflow
Merge branch 'WEB-2846' into CoreProduct

Conflicts:
	rest-api/rest-api-server/src/main/java/org/bonitasoft/web/rest/server/engineclient/ProcessEngineClient.java
	rest-api/rest-api-server/src/test/java/org/bonitasoft/web/rest/server/engineclient/ProcessEngineClientTest.java