update fastjson to 1.2.70

dependencies/pom.xml

@@ -25,7 +25,7 @@
 		<mongo.driver.version>3.3.0</mongo.driver.version>
 		<shiro.version>1.2.2</shiro.version>
 		<aspectj.version>1.8.8</aspectj.version>
-		<fastjson.version>1.2.67</fastjson.version>
+		<fastjson.version>1.2.70</fastjson.version>
 		<!-- <asm.version>5.2</asm.version> -->
 		<procyon.version>0.5.35</procyon.version>
 		<druid.version>1.0.18</druid.version>