MP1-4155: moved compiled projects (libcurl, librtmp, libssh2, libzlib) under MPUrlSourceSplitter folder
fixed socket leak in multicast UDP server
added discontinuity to stream
addded sleep before load option (some protocols need some time between closing and opening connections - e.g. multicast UDP)
added detection of connection lost in UDP protocol

re-opening connection still unsolved in not live streams
downloading still not fixed