fix the incorrect package info and function name in mysql e2e test (#275)

Author: jockech

mysql-plugin/src/e2e-test/java/io/cdap/plugin/common/stepsdesign/package-info.java

@@ -15,6 +15,6 @@
  */
 
 /**
- * Package contains the locators for the Joiner plugin.
+ * Package contains the stepDesign for common features.
  */
 package io.cdap.plugin.common.stepsdesign;

mysql-plugin/src/e2e-test/java/io/cdap/plugin/mysql/runners/package-info.java

@@ -15,6 +15,6 @@
  */
 
 /**
- * Package contains the locators for the Joiner plugin.
+ * Package contains the runners for Mysql features.
  */
 package io.cdap.plugin.mysql.runners;

mysql-plugin/src/e2e-test/java/io/cdap/plugin/mysql/stepsdesign/Mysql.java

@@ -31,7 +31,7 @@
 public class Mysql implements CdfHelper {
 
   @Then("Click on preview data for MySQL sink")
-  public void clickOnPreviewDataForBigQuerySink() {
+  public void clickOnPreviewDataForMysqlSink() {
     openSinkPluginPreviewData("Mysql");
   }
 

mysql-plugin/src/e2e-test/java/io/cdap/plugin/mysql/stepsdesign/package-info.java

@@ -15,6 +15,6 @@
  */
 
 /**
- * Package contains the locators for the Joiner plugin.
+ * Package contains the stepDesign for Mysql features.
  */
 package io.cdap.plugin.mysql.stepsdesign;

mysql-plugin/src/e2e-test/java/io/cdap/plugin/package-info.java

@@ -15,6 +15,6 @@
  */
 
 /**
- * Package contains the locators for the Joiner plugin.
+ * Package contains Mysql client.
  */
 package io.cdap.plugin;