Update to Java SDK 0.8.0

Signed-off-by: sahuang <xiaohai.xu@zilliz.com>

README.md

@@ -35,14 +35,14 @@ You can use **Apache Maven** or **Gradle**/**Grails** to download the SDK.
         <dependency>
             <groupId>io.milvus</groupId>
             <artifactId>milvus-sdk-java</artifactId>
-            <version>0.7.0</version>
+            <version>0.8.0</version>
         </dependency>
        ```
 
    - Gradle/Grails
 
         ```gradle
-        compile 'io.milvus:milvus-sdk-java:0.7.0'
+        compile 'io.milvus:milvus-sdk-java:0.8.0'
         ```
 
 ### Examples

examples/pom.xml

@@ -63,7 +63,7 @@
         <dependency>
             <groupId>io.milvus</groupId>
             <artifactId>milvus-sdk-java</artifactId>
-            <version>0.8.0-SNAPSHOT</version>
+            <version>0.8.0</version>
         </dependency>
         <dependency>
             <groupId>com.google.code.gson</groupId>

pom.xml

@@ -25,7 +25,7 @@
 
     <groupId>io.milvus</groupId>
     <artifactId>milvus-sdk-java</artifactId>
-    <version>0.8.0-SNAPSHOT</version>
+    <version>0.8.0</version>
     <packaging>jar</packaging>
 
     <name>io.milvus:milvus-sdk-java</name>

src/main/java/io/milvus/client/MilvusClient.java

@@ -26,9 +26,9 @@ import java.util.List;
 /** The Milvus Client Interface */
 public interface MilvusClient {
 
-  String clientVersion = "0.8.0";
+  String clientVersion = "0.9.0";
 
-  /** @return current Milvus client version： 0.8.0 */
+  /** @return current Milvus client version： 0.9.0 */
   default String getClientVersion() {
     return clientVersion;
   }