Merge remote-tracking branch 'remotes/origin/master' into hechu1

# Conflicts:
#	src/core/operation/Select.json
#	src/core/process/Process.java

.idea/misc.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_10" default="false" project-jdk-name="10" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_10" default="false" project-jdk-name="11" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>

GDMS.iml

@@ -19,8 +19,16 @@
     </content>
     <orderEntry type="inheritedJdk" />
     <orderEntry type="sourceFolder" forTests="false" />
-    <orderEntry type="library" scope="PROVIDED" name="Tomcat 8.5.37" level="application_server_libraries" />
     <orderEntry type="library" name="lib" level="project" />
-    <orderEntry type="library" name="tomcat-lib" level="project" />
+    <orderEntry type="library" scope="PROVIDED" name="Tomcat 8.5" level="application_server_libraries" />
+    <orderEntry type="module-library">
+      <library>
+        <CLASSES>
+          <root url="jar://E:/tomcat8/apache-tomcat-8.5.37/lib/tomcat-jdbc.jar!/" />
+        </CLASSES>
+        <JAVADOC />
+        <SOURCES />
+      </library>
+    </orderEntry>
   </component>
 </module>