修复任务记录删除失败的问题

优化网络连接状态获取的逻辑
修复配置文件的某些配置失效的问题
新增m3u8切片状态注解`@M3U8.onPeerStart`，`@M3U8.onPeerComplete`，`@M3U8.onPeerFail`
新增动态指定m3u8协议视频的下载功能（边下边播）

AriaAnnotations/src/main/java/com/arialyy/annotations/TaskEnum.java

@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.annotations;
+
+/**
+ * Created by lyy on 2017/7/10.
+ * 任务类型枚举
+ */
+public enum TaskEnum {
+  DOWNLOAD("com.arialyy.aria.core.download", "DownloadTask", "$$DownloadListenerProxy",
+      "NormalTaskListener"),
+  DOWNLOAD_GROUP("com.arialyy.aria.core.download", "DownloadGroupTask",
+      "$$DownloadGroupListenerProxy", "NormalTaskListener"),
+  DOWNLOAD_GROUP_SUB("com.arialyy.aria.core.download", "DownloadGroupTask",
+      "$$DGSubListenerProxy", "SubTaskListener"),
+  UPLOAD("com.arialyy.aria.core.upload", "UploadTask", "$$UploadListenerProxy",
+      "NormalTaskListener"),
+  M3U8_PEER("com.arialyy.aria.core.download", "DownloadTask", "$$M3U8PeerListenerProxy",
+      "M3U8PeerTaskListener");
+
+  public String pkg, className, proxySuffix, proxySuperClass;
+
+  /**
+   * @param pkg 包名
+   * @param className 对应到任务类名
+   * @param proxySuffix 事件代理后缀
+   * @param proxySuperClass 代理类的父类
+   */
+  TaskEnum(String pkg, String className, String proxySuffix, String proxySuperClass) {
+    this.pkg = pkg;
+    this.className = className;
+    this.proxySuffix = proxySuffix;
+    this.proxySuperClass = proxySuperClass;
+  }
+}