Revert "Updated liquibase dependency to 3.2."

This reverts commit d6621e62adbcadec571dbc651c3523384c95724b. I think
the test failure might be a bug in Liquibase:
https://liquibase.jira.com/browse/CORE-2094
Fix tests for JSON error rendering

See gh-1762
Upgrade to Spring Integration 4.1.0.RC1

Closes gh-1765
Allow /health and /info to authenticate anonymously

Then we can optionally find a non-anonymous principal if there
is one. If the user is anonymous then the health result is cached
up to endpoints.health.ttl (default 1000ms) to prevent a DOS attack.

Fixes gh-1353
Add note about springloaded configuration
Fix a typo in error.whitelabel.enabled