Remove the experimental mentions (#1278)

Signed-off-by: Tomasz Pietrek <[email protected]>

Author: Jarema

src/main/java/io/nats/client/Nats.java

@@ -23,7 +23,7 @@
 /**
  * The Nats class is the entry point into the NATS client for Java. This class
  * is used to create a connection to the NATS server. Connecting is a
- * synchronous process, with a new asynchronous version available for experimenting.
+ * synchronous process, with a new asynchronous version available.
  * 
  * <p>Simple connections can be created with a URL, while more control is provided
  * when an {@link Options Options} object is used. There are a number of options that

src/main/java/io/nats/client/Options.java

@@ -1241,7 +1241,7 @@ public Builder noReconnect() {
          * <p>The reconnect state is entered when the connection is connected and loses
          * that connection. During the initial connection attempt, the client will cycle over
          * its server list one time, regardless of what maxReconnects is set to. The only exception
-         * to this is the experimental async connect method {@link Nats#connectAsynchronously(Options, boolean) connectAsynchronously}.</p>
+         * to this is the async connect method {@link Nats#connectAsynchronously(Options, boolean) connectAsynchronously}.</p>
          *
          * @param max the maximum reconnect attempts
          * @return the Builder for chaining