增加立即恢复任务的接口，正常来说，当执行队列满时，调用恢复任务接口，只能将任务放到缓存队列中。如果希望调用恢复接口，马上进入执行队列，需要调用resume(true)这个重载方法。

修复一个非分块模式下，无法恢复下载的问题
增加M3U8加密密钥的下载地址转换器 https://github.com/AriaLyy/Aria/issues/522

PublicComponent/src/main/java/com/arialyy/aria/core/common/RecordHelper.java

@@ -63,7 +63,8 @@ public class RecordHelper {
       fileExists = true;
     }
     // 处理文件被删除的情况
-    if (fileExists) {
+    if (!fileExists) {
+      ALog.w(TAG, String.format("文件【%s】被删除，重新分配线程区间", mTaskRecord.filePath));
       for (int i = 0; i < mTaskRecord.threadNum; i++) {
         long startL = i * blockSize, endL = (i + 1) * blockSize;
         ThreadRecord tr = mTaskRecord.threadRecords.get(i);

PublicComponent/src/main/java/com/arialyy/aria/core/processor/IKeyUrlConverter.java

@@ -0,0 +1,32 @@
+/*
+ * 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.aria.core.processor;
+
+import com.arialyy.aria.core.inf.IEventHandler;
+
+/**
+ * M3U8 密钥下载地址处理器，可用于解密被加密的密钥的下载地址
+ */
+public interface IKeyUrlConverter extends IEventHandler {
+
+  /**
+   * 将被加密的密钥下载地址转换为可使用的http下载地址
+   *
+   * @param keyUrl 加密的url地址
+   * @return 可正常访问的http地址
+   */
+  String convert(String keyUrl);
+}

PublicComponent/src/main/java/com/arialyy/aria/util/CommonUtil.java

@@ -71,15 +71,15 @@ public class CommonUtil {
       ALog.e(TAG, "sql语句表达式不能为null");
       return false;
     }
-    if (expression.length == 1) {
-      ALog.e(TAG, String.format("表达式需要写入参数，参数信息：%s", Arrays.toString(expression)));
-      return false;
-    }
+    //if (expression.length == 1) {
+    //  ALog.e(TAG, String.format("表达式需要写入参数，参数信息：%s", Arrays.toString(expression)));
+    //  return false;
+    //}
     String where = expression[0];
-    if (!where.contains("?")) {
-      ALog.e(TAG, String.format("请在where语句的'='后编写?，参数信息：%s", Arrays.toString(expression)));
-      return false;
-    }
+    //if (!where.contains("?")) {
+    //  ALog.e(TAG, String.format("请在where语句的'='后编写?，参数信息：%s", Arrays.toString(expression)));
+    //  return false;
+    //}
     Pattern pattern = Pattern.compile("\\?");
     Matcher matcher = pattern.matcher(where);
     int count = 0;