v4.2.0-RC1

• #1343 Decouple authentication from CASImpl (@dima767)
• #1385 private methods that don't access instance data should be "static" (@kirill-vlasov)
• #1383 Update to gradle 2.10 (@mmoayyed)
• 60085d7 fixed checkstyle issues (@mmoayyed)
• #1381 Dead stores should be removed (@DevFactory)
• #1380 Ensure CAS attributes are encoded (@mmoayyed)
• #1382 Unused private fields should be removed (@DevFactory)
• ea7a2c2 Fixing squid:S1068 - Unused private fields should be removed (@kirill-vlasov)
• 4c3b646 Remove protocol constants from webflow action (@mmoayyed)
• 0fe35cf Allow SLO messages to reach into the CAS truststore (@mmoayyed)
• #1372 Allow the warning cookie to be set conditionally in non-interactive actions (@mmoayyed)
• #1366 Allow oauth services to be verified against services manager (@mmoayyed)
• #1368 Ticket registry based on Infinispan cache (@mmoayyed)
• #1369 Doc correction - header level (@PetrGasparik)
• #1354 JWT/Token authentication support (@mmoayyed)