Added new JS5 file server (launcher no longer has to handle cache downloading) - PLEASE SET YOUR CACHE LOCATION IN file-server.properties

Updated client to connect to the new file server

File-Server/src/main/kotlin/js5server/JS5Server.kt

@@ -0,0 +1,52 @@
+package js5server
+
+import com.displee.cache.CacheLibrary
+import java.io.File
+import kotlin.concurrent.thread
+
+object JS5Server {
+
+    @JvmStatic
+    fun main(args: Array<String>) {
+        val start = System.currentTimeMillis()
+        val file = File("./file-server.properties")
+        if (!file.exists()) {
+            System.err.println("Unable to find server properties file.")
+            return
+        }
+
+        println("Start up...")
+
+        var revision = 530
+        var subRevision = 1
+        var port = 43593
+        var threads = 0
+        lateinit var cachePath: String
+        file.forEachLine { line ->
+            val (key, value) = line.split("=")
+            when (key) {
+                "revision" -> revision = value.toInt()
+                "subrevision" -> subRevision = value.toInt()
+                "port" -> port = value.toInt()
+                "threads" -> threads = value.toInt()
+                "cachePath" -> cachePath = value
+            }
+        }
+
+        println("Loaded configuration.")
+
+        val cache = CacheLibrary(cachePath)
+        val versionTable = cache.generateOldUkeys()
+        val fileServer = FileServer(DataProvider(cache), versionTable)
+
+        println("Loaded cache revision $revision from $cachePath")
+
+        val network = JS5Net(fileServer, revision, subRevision)
+
+        println("Loading complete [${System.currentTimeMillis() - start}ms] / bound to 127.0.0.1:$port")
+
+        val runtime = Runtime.getRuntime()
+        runtime.addShutdownHook(thread(start = false) { network.stop() })
+        network.start(port, threads)
+    }
+}