Change the current bonita version from 6.3.0-SNAPSHOT to 6.3.0
Change the bonita version from 6.3.0-SNAPSHOT to ${current.bonita.version} in tests
[MIGRATION RELEASE] Created the release 1.6.0
[MIGRATION RELEASE] Updating pom files for next snapshot 1.6.1-SNAPSHOT
BS-8682 : [Migration SP] NPE : Cannot invoke method text() on null object

- Add a check for "isExternalNode" variable is null or not
- Rename folders of migration to have an unique number
Change the current bonita version from 6.3.1-SNAPSHOT to 6.3.0
BS-8682 : [Migration SP] NPE : Cannot invoke method text() on null object

- Add a check for "isExternalNode" variable is null or not, to modify the XML file
[MIGRATION RELEASE] Created the release 1.6.0
[MIGRATION RELEASE] Updating pom files for next snapshot 1.6.1-SNAPSHOT
merge from master