Bumped version number to 6.0.0 prior to release

Author: oliemansm

gradle.properties

@@ -1,5 +1,5 @@
-version = 7.5.1-SNAPSHOT
+version = 8.0.0-SNAPSHOT
 group = com.graphql-java-kickstart
 
 LIB_GRAPHQL_JAVA_VER = 13.0
-LIB_JACKSON_VER = 2.9.8
+LIB_JACKSON_VER = 2.9.9

src/main/java/graphql/servlet/input/BatchInputPreProcessResult.java

@@ -49,7 +49,7 @@ public String getStatusMessage() {
    }
 
     /**
-     * @returnstatus code the servlet will use if if isExecutable is false.
+     * @return status code the servlet will use if if isExecutable is false.
      */
    public int getStatusCode() {
         return statusCode;

src/main/java/graphql/servlet/input/GraphQLInvocationInputFactory.java

@@ -12,11 +12,9 @@
 
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
-import javax.servlet.http.Part;
 import javax.websocket.Session;
 import javax.websocket.server.HandshakeRequest;
 import java.util.List;
-import java.util.Map;
 import java.util.function.Supplier;
 
 /**