Fix javadoc in couchbase cache. (#1985)

Closes #1984.

src/main/java/org/springframework/data/couchbase/cache/CouchbaseCache.java

@@ -34,7 +34,7 @@
 /**
  * Couchbase-backed Cache Methods that take a Class return non-wrapped objects - cache-miss cannot be distinguished from
  * cached null - this is what AbstractValueAdaptingCache does Methods that do not take a Class return wrapped objects -
- * the wrapper is null for cache-miss - the exception is T get(final Object key, final Callable<T> valueLoader), which
+ * the wrapper is null for cache-miss - the exception is T get(final Object key, final Callable&lt;T&gt; valueLoader), which
  * does not return a wrapper because if there is a cache-miss, it gets the value from valueLoader (and caches it). There
  * are anomalies with get(key, ValueLoader) - which returns non-wrapped object.
  */

src/main/java/org/springframework/data/couchbase/cache/CouchbaseCacheConfiguration.java

@@ -62,7 +62,7 @@ public static CouchbaseCacheConfiguration defaultCacheConfig() {
 	/**
 	 * Registers default cache key converters. The following converters get registered:
 	 * <ul>
-	 * <li>{@link String} to {@link byte byte[]} using UTF-8 encoding.</li>
+	 * <li>{@link String} to byte using UTF-8 encoding.</li>
 	 * <li>{@link SimpleKey} to {@link String}</li>
 	 * </ul>
 	 *