Improve objectDebug() formatting
Replace a few instances of '.length() > 0' with \!isEmpty() which is more efficient.
WebServer: Give server side scripts access to the client IP address.

Also server ip, server version and request protocol. Ultimately this
list should include most of the values specified in
RFC 3875 - The Common Gateway Interface (CGI) Version 1.1
HTTP Server: Remove duplication of the HTTP Server version string.