OPAL-2190: Cross variables functionnality
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Merge branch 'dev-yannick'
OPAL-2190: Code improvements following comments
OPAL-2190: Removing commented out code
OPAL-2190: Overly long method fix
Merge pull request #408 from emorency/OPAL-2190-crosstab

OPAL-2190: Cross variables functionnality
OPAL-2190: Fixing test
Merge pull request #409 from emorency/OPAL-2190-crosstab

OPAL-2190: Fixing test
OPAL-2196 Update subject profile on explicit logout.
Subject profile web services added
subjectCredentials package renamed to users
Ensure profile with the right realm at subject creation.
Test fix: Ensure profile with the right realm at subject creation.
Work on Functional Unit upgrade (OPAL-2143)
Delete Functional Units from XML config (OPAL-2143)
Upgrade Hibernate schemas for nullable order columns
Refactor packages
Change Unit subject type to Group (OPAL-2143)
Work on Functional Unit upgrade (OPAL-2143)