DATAREDIS-424 - Update Reference Documentation.

Updated what’s new section in reference documentation.
Remove outdated version from readme.
Update project team twitter handle on readme.

README.md

@@ -54,9 +54,6 @@ dependencies {
 }
 ~~~~~
 
-Latest GA release is _1.2.1.RELEASE_  
-Latest nightly is _1.3.0.BUILD-SNAPSHOT_
-
 # Usage (for the impatient)
 
 * Configure the Redis connector to use (here [jedis](https://github.com/xetorthio/jedis)):
@@ -120,5 +117,5 @@ Github is for social coding: if you want to write code, we encourage contributio
 
 # Staying in touch
 
-Follow the project team ([@thomasdarimont](http://twitter.com/thomasdarimont), [@stroblchristoph](http://twitter.com/stroblchristoph)) on Twitter. In-depth articles can be
+Follow the project team ([@SpringData](http://twitter.com/springdata)) on Twitter. In-depth articles can be
 found at the Spring [team blog](https://spring.io/blog), and releases are announced via our [news feed](https://spring.io/blog/category/news).

src/asciidoc/new-features.adoc

@@ -1,6 +1,15 @@
 [[new-features]]
 = New Features
 
+[[new-in-1-6-0]]
+== New in Spring Data Redis 1.6 
+
+* The `Lettuce` Redis driver switched from https://github.com/wg/lettuce[wg/lettuce] to https://github.com/mp911de/lettuce[mp911de/lettuce].
+* Support for `ZRANGEBYLEX`.
+* Enhanced range operations for `ZSET`s including `+inf` / `-inf`.
+* Performance improvements in `RedisCache` now releasing connections earlier.
+* Generic Jackson2 `RedisSerializer` making use of Jackson's polymorphic deserialization.
+
 [[new-in-1-5-0]]
 == New in Spring Data Redis 1.5