do not reveal passphrase and certificate for iOS variants AGPUSH-662
added javadoc to stripPassphraseAndCertificate
added general server response error handling mechanism AGPUSH-720
works on empty tables
removed filter on enabled
ui: Add icon for SimplePush variants
ui: Polish Add Variant dialog
Changes for KC beta-3
Update to Keycloak 1.0-beta-3
Temporarily inclusion of Nexus repository