adding functionality to change BrowserSim skin
JBIDE-13552 BrowserSim: Ripple integration  - closing both Ripple and pop-up (browserSim) after pushing 'exit' menu item
Adding UploadFileServlet and HostFileServlet for correct collaboration with camera API
Updating ripple-temp submodule
Caching issue fixing - prevent NOT_MODIFIED_SINCE 304 responce, prevent "if-modified-since" headers handling
Error dialog showing, when the port is already in use
Secure Jetty to allow access only from localhost