DATACASS-641 - Fix documentation for java.util.UUID type mapping.

Since 2.0, java.util.UUID maps by default to uuid instead of timeuuid. Documentation now reflects this change.

src/main/asciidoc/new-features.adoc

@@ -22,6 +22,7 @@ to `org.springframework.data.cassandra`.
 * Introduced new annotation for `@AllowFiltering`.
 * Index creation on application startup via `@Indexed` and `@SASI`.
 * Tooling support for null-safety via Spring's `@NonNullApi` and `@Nullable` annotations.
+* `java.util.UUID` properties default now to `uuid` column type, was previously `timeuuid`.
 
 [[new-features.1-5-0]]
 == What's new in Spring Data for Apache Cassandra 1.5

src/main/asciidoc/reference/mapping.adoc

@@ -71,7 +71,7 @@ for further details. The following table maps Spring Data types to Cassandra typ
 | `blob`
 
 | `java.util.UUID`
-| `timeuuid`
+| `uuid`
 
 | `UDTValue`, mapped User-Defined Types
 | user type