Update version numbers in READMEs

Author: lpatino10

README.md

@@ -54,7 +54,7 @@ All the services:
 <dependency>
 	<groupId>com.ibm.watson.developer_cloud</groupId>
 	<artifactId>java-sdk</artifactId>
-	<version>3.9.1</version>
+	<version>4.0.0</version>
 </dependency>
 ```
 
@@ -64,7 +64,7 @@ Only Retrieve and Rank:
 <dependency>
 	<groupId>com.ibm.watson.developer_cloud</groupId>
 	<artifactId>retrieve-and-rank</artifactId>
-	<version>3.9.1</version>
+	<version>4.0.0</version>
 </dependency>
 ```
 
@@ -73,19 +73,19 @@ Only Retrieve and Rank:
 All the services:
 
 ```gradle
-'com.ibm.watson.developer_cloud:java-sdk:3.9.1'
+'com.ibm.watson.developer_cloud:java-sdk:4.0.0'
 ```
 
 Only Retrieve and Rank:
 
 ```gradle
-'com.ibm.watson.developer_cloud:retrieve-and-rank:3.9.1'
+'com.ibm.watson.developer_cloud:retrieve-and-rank:4.0.0'
 ```
 
 Only Visual Recognition:
 
 ```gradle
-'com.ibm.watson.developer_cloud:visual-recognition:3.9.1'
+'com.ibm.watson.developer_cloud:visual-recognition:4.0.0'
 ```
 
 ##### Development Snapshots
@@ -259,7 +259,7 @@ Gradle:
 
 ```sh
 cd java-sdk
-gradle jar  # build jar file (build/libs/watson-developer-cloud-3.9.1.jar)
+gradle jar  # build jar file (build/libs/watson-developer-cloud-4.0.0.jar)
 gradle test # run tests
 gradle check # performs quality checks on source files and generates reports
 gradle testReport # run tests and generate the aggregated test report (build/reports/allTests)
@@ -309,4 +309,4 @@ or [Stack Overflow](http://stackoverflow.com/questions/ask?tags=ibm-watson).
 [apache_maven]: http://maven.apache.org/
 [sonatype_snapshots]: https://oss.sonatype.org/content/repositories/snapshots/com/ibm/watson/developer_cloud/
 
-[jar]: https://github.com/watson-developer-cloud/java-sdk/releases/download/java-sdk-3.9.1/java-sdk-3.9.1-jar-with-dependencies.jar
+[jar]: https://github.com/watson-developer-cloud/java-sdk/releases/download/java-sdk-4.0.0/java-sdk-4.0.0-jar-with-dependencies.jar

alchemy/README.md

@@ -8,14 +8,14 @@
 <dependency>
 	<groupId>com.ibm.watson.developer_cloud</groupId>
 	<artifactId>alchemy</artifactId>
-	<version>3.9.1</version>
+	<version>4.0.0</version>
 </dependency>
 ```
 
 ##### Gradle
 
 ```gradle
-'com.ibm.watson.developer_cloud:alchemy:3.9.1'
+'com.ibm.watson.developer_cloud:alchemy:4.0.0'
 ```
 
 ## Alchemy Language

conversation/README.md

@@ -7,13 +7,13 @@
 <dependency>
 	<groupId>com.ibm.watson.developer_cloud</groupId>
 	<artifactId>conversation</artifactId>
-	<version>3.9.1</version>
+	<version>4.0.0</version>
 </dependency>
 ```
 
 ##### Gradle
 ```gradle
-'com.ibm.watson.developer_cloud:conversation:3.9.1'
+'com.ibm.watson.developer_cloud:conversation:4.0.0'
 ```
 
 ## Usage

discovery/README.md

@@ -7,13 +7,13 @@
 <dependency>
   <groupId>com.ibm.watson.developer_cloud</groupId>
   <artifactId>discovery</artifactId>
-  <version>3.9.1</version>
+  <version>4.0.0</version>
 </dependency>
 ```
 
 ##### Gradle
 ```gradle
-'com.ibm.watson.developer_cloud:discovery:3.9.1'
+'com.ibm.watson.developer_cloud:discovery:4.0.0'
 ```
 
 ## Usage

document-conversion/README.md

@@ -7,13 +7,13 @@
 <dependency>
 	<groupId>com.ibm.watson.developer_cloud</groupId>
 	<artifactId>document-conversion</artifactId>
-	<version>3.9.1</version>
+	<version>4.0.0</version>
 </dependency>
 ```
 
 ##### Gradle
 ```gradle
-'com.ibm.watson.developer_cloud:document-conversion:3.9.1'
+'com.ibm.watson.developer_cloud:document-conversion:4.0.0'
 ```
 
 ## Usage

language-translator/README.md

@@ -8,13 +8,13 @@ Formerly called Language Translation. No code changes are required to migrate.
 <dependency>
 	<groupId>com.ibm.watson.developer_cloud</groupId>
 	<artifactId>language-translator</artifactId>
-	<version>3.9.1</version>
+	<version>4.0.0</version>
 </dependency>
 ```
 
 ##### Gradle
 ```gradle
-'com.ibm.watson.developer_cloud:language-translator:3.9.1'
+'com.ibm.watson.developer_cloud:language-translator:4.0.0'
 ```
 
 ## Usage

natural-language-classifier/README.md

@@ -7,13 +7,13 @@
 <dependency>
 	<groupId>com.ibm.watson.developer_cloud</groupId>
 	<artifactId>natural-language-classifier</artifactId>
-	<version>3.9.1</version>
+	<version>4.0.0</version>
 </dependency>
 ```
 
 ##### Gradle
 ```gradle
-'com.ibm.watson.developer_cloud:natural-language-classifier:3.9.1'
+'com.ibm.watson.developer_cloud:natural-language-classifier:4.0.0'
 ```
 
 ## Usage

natural-language-understanding/README.md

@@ -7,13 +7,13 @@
 <dependency>
 	<groupId>com.ibm.watson.developer_cloud</groupId>
 	<artifactId>natural-language-understanding</artifactId>
-	<version>3.9.1</version>
+	<version>4.0.0</version>
 </dependency>
 ```
 
 ##### Gradle
 ```gradle
-'com.ibm.watson.developer_cloud:natural-language-understanding:3.9.1'
+'com.ibm.watson.developer_cloud:natural-language-understanding:4.0.0'
 ```
 
 ## Usage

personality-insights/README.md

@@ -7,13 +7,13 @@
 <dependency>
 	<groupId>com.ibm.watson.developer_cloud</groupId>
 	<artifactId>personality-insights</artifactId>
-	<version>3.9.1</version>
+	<version>4.0.0</version>
 </dependency>
 ```
 
 ##### Gradle
 ```gradle
-'com.ibm.watson.developer_cloud:personality-insights:3.9.1'
+'com.ibm.watson.developer_cloud:personality-insights:4.0.0'
 ```
 
 ## Usage

retrieve-and-rank/README.md

@@ -7,13 +7,13 @@
 <dependency>
 	<groupId>com.ibm.watson.developer_cloud</groupId>
 	<artifactId>retrieve-and-rank</artifactId>
-	<version>3.9.1</version>
+	<version>4.0.0</version>
 </dependency>
 ```
 
 ##### Gradle
 ```gradle
-'com.ibm.watson.developer_cloud:retrieve-and-rank:3.9.1'
+'com.ibm.watson.developer_cloud:retrieve-and-rank:4.0.0'
 ```
 
 ## Usage