BZ 1134313 - security review, Improper File Type Validation
changed importsto slf4j
Fix compilation error due to switch from org.apache.commons.logging classes to org.slf4j
Remove references to UberfireImageServlet from web.xml files which were causing a ClassNotFound error on startup of the standalone designer.
BZ1122342 - Enable I18N characters in BP names.
Fix creation of BPMN id from the name given in the UI by converting invalid characters to their URL-encoding hex equivalents.
Remove unused imports from Utils.java
Change project version to keep repo-dep-tree.pl working

`droolsjbpm-build-bootstrap/script/repo-dep-tree.pl` checks that all
modules (in all repositories) have the same version, otherwise it fails.
BZ 1147964 - Data Object selector does not allow to type own value
BZ 1147964 - Data Object selector does not allow to type own value
BZ1121332 - allow "\n" in Java string literals in Script activities.