Combine sources and filters in pvweb to make room for save button
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
By combining the sources and filters into a single panel (accessed with a single button in the top-panel), we can make enough room for the save-data button. Also, ParaViewWeb needs to give the user a way to choose whether the server process should be shut down when the user leaves the page or whether it should remain running to be connected to again later.