error page adapter support
Merge pull request #901 from patriot1burke/master

error page adapter support
Add test to add/remove RequiredAction to UserTest
KEYCLOAK-869 Rename EventEntity time column to entity_time
KEYCLOAK-885 Support Liquibase updateSQL
Updated instructions to test on PostgreSQL
KEYCLOAK-902 State should not be required
KEYCLOAK-903

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