Merge branch 'release/1.5.8' into develop
-. start 1.5.9-SNAPSHOT
-. add SnappySerializer for compress cache item.
-. reformat README
-. add Fast-Serialization Library
-. change value serializer from java built-in serializer to fast serialization and snappy for compression.

 run SerializerTest:

 title=binary builtin warm-up : 3557
 title=binary builtin warm-up : 92723
 title=binary builtin small : 34618
 title=binary builtin large : 560310
 title=fst warm-up : 43350
 title=fst warm-up : 48334
 title=fst small : 10408
 title=fst large : 203779
 title=fst snappy warm-up : 24876
 title=fst snappy warm-up : 1519
 title=fst snappy small : 3433
 title=fst snappy large : 84232
 title=binary snappy warm-up : 384
 title=binary snappy warm-up : 10462
 title=binary snappy small : 16265
 title=binary snappy large : 303778
-. don't add TimestampsRegion name for expiration (no need)
-. remove unused library
-. remove scala
Objects.equals는 jdk6에 없기 때문에 guava의 Objects.equal을 사용

deprecated 된 hibernate의 Index 어노테이션을 JPA2.1로 변경
-. fst version upgrade 1.52
-. fast-serialization has bug to serialize Float type in Tomcat WAS
-. use Snappy + Java Built-In Serializer
-. create hibernate-example-web for test hibernate-redis in Real Environments
-. upgrade FST-Serialization 1.53 to bug fix with Float type
-. modify maven deploy command
-. prepare release 1.5.9
-. release 1.5.9
Release 1.5.9