Rename File/Folder name variables to distinguish them from real (full) paths

Make sure full path is used everywhere (if I didn't miss anything)

ClientServerLib/ClientServerLib/CServer.cs

@@ -185,7 +185,7 @@ namespace ServerLib
             ProcessStartInfo info = new ProcessStartInfo
                 {
                     FileName = "VocaluxeServerConfig.exe",
-                    WorkingDirectory = Environment.CurrentDirectory,
+                    WorkingDirectory = AppDomain.CurrentDomain.BaseDirectory,
                     Arguments = port + " " + (_Encrypted ? "true" : "false") + (reserve ? " reserve" : ""),
                     UseShellExecute = true,
                     CreateNoWindow = true,