Merge branch 'qianjin-sqlserver' into qianjin-sqlserver-refactor

# Conflicts:
#	PluginsAndFeatures/azure-toolkit-for-intellij/src/com/microsoft/azure/toolkit/intellij/mysql/MySQLPropertyView.java

Author: shenqianjin

PluginsAndFeatures/azure-toolkit-for-intellij/Test/java/com/microsoft/intellij/runner/webapp/WebAppIntegrationTest.java

@@ -17,6 +17,7 @@ public class AzurePreloadingActivity extends PreloadingActivity {
     @Override
     public void preload(@org.jetbrains.annotations.NotNull final ProgressIndicator indicator) {
         // Using progress manager as azure task manager is not initialized
-        ApplicationManager.getApplication().executeOnPooledThread(Preloader::load);
+        // TODO: remove this comment
+        // ApplicationManager.getApplication().executeOnPooledThread(Preloader::load);
     }
 }