v2.2.0

• 2.2.0 (2017-09-01)
  ** unwrap method in class RedisCache now work with parameter Pool.class and RedisSentinelPool.class
  ** add direct jedis dependency for jetcache-starter-redis
  ** coverage tools integration
• 2.2.0.Beta4 (2017-06-12)
  ** declare beanDependencyManager bean in static way to eliminate warning log during startup
• 2.2.0.Beta3 (2017-06-12)
  ** fix compatible problem with Spring(<=4.2) in jetcache 2.1.5, 2.2.0.Beta1, 2.2.0.Beta2
• 2.2.0.Beta2 (2017-06-08)
  ** MultiLevelCache now supports unwrap method
  ** optimise RefreshCache
• 2.2.0.Beta1 (2017-06-05)
  ** support redis luttece client
  ** introduce asynchronous cache API (when using luttece)
  ** introduce auto load (read through) and auto refresh features
  ** add timeUnit attribute to @cached and @CreateCache
  ** some internal API refactor