renamed PROXY_URL to PROXY_SERVER to avoid confusion
fixed error messages and added status code checks
renamed PROXY_URL to PROXY_SERVER to avoid confusion
fixed spelling error in property name
added code to disable the analyzer if initialization fails
deprecated proxyUrl and replaced it with proxyServer - using the deprecated configuration will still work but will generate a warning
deprecated proxyUrl and replaced it with proxyServer
deprecated the proxyUrl field replacing it with proxyServer; getter and setter for proxyUrl now just wrap proxyServer
updated documentation to replace deprecated proxyUrl with proxyServer