changes signature in Webclient.
- remove paramter "expectedMimeType"
Changes Install Setup

- search icon renamed to find.png
- tomcat will not log in catalina.out. Uses catalina.YYYY-MM-DD.out.
- localhost in Search.js is replaced by $SERVER
- localhost in api/service.json ins replaced by $SERVER
html listing has always a type
Different Things

- listing resources always needs type
- remove sensless logging
- remove error handling from readData to let the client see what happens
enriches one logging statment
removes sensless logging line and redundant exception handling