make index a jsp page; a few other tweaks

makefile

src/model/TrawlExpert.java

src/web/Director.java

src/web/StartUpContext.java

tomcat/logs/localhost_access_log.2018-03-22.txt

tomcat/webapps/Trawl/WEB-INF/lib/json-simple-1.1.1.jar

tomcat/webapps/Trawl/WEB-INF/web.xml

tomcat/webapps/Trawl/index.jsp

tomcat/webapps/Trawl/result.jsp

...rk/Catalina/localhost/Trawl/org/apache/jsp/index_jsp.java

...k/Catalina/localhost/Trawl/org/apache/jsp/result_jsp.java