Merge pull request #56 from ca1e/patch-1

解决停止WebService

app/src/main/java/io/legado/app/service/WebService.kt

@@ -48,6 +48,12 @@ class WebService : BaseService() {
     override fun onDestroy() {
         super.onDestroy()
         isRun = false
+        if (httpServer?.isAlive == true) {
+            httpServer?.stop()
+        }
+        if (webSocketServer?.isAlive == true) {
+            webSocketServer?.stop()
+        }
     }
 
     override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {