Add support for adding Java event handlers to JavaScript in the WebView based brower component

SOAP-2329
SOAP-2186 Fix sub menus in REST Mock Response Get Data
SOAP-2279 Support for JSonPath in Property transfer and Transfer to ... menu in JSON tree
Use install4j signing instead of signtool for windows
Use install4j signing instead of signtool for windows
Merge pull request #84 from SmartBear/call-java-from-javascript-soap-2329

Add support for adding Java event handlers to JavaScript in the WebView based browser component
Merge branch 'get-data-in-outline-SOAP-2280' into next
Clean up the Enabled web view based browser component test a bit

SOAP-2329
Make the Enabled web view based browser component test a integration test

SOAP-2329
Revert e2edca4d11124fff14adbd048a9bed53fe886b19 that was accidentally committed
Merge branch 'next' of github.com:SmartBear/soapui into delete-with-body-SOAP-507