增加内置字体、贝塞尔曲线、算术验证码、base64输出

pom.xml

@@ -5,7 +5,7 @@
     <groupId>org.wf</groupId>
 
     <artifactId>easy-captcha</artifactId>
-    <version>1.5.0-RELEASE</version>
+    <version>1.6.0-RELEASE</version>
     <packaging>jar</packaging>
 
     <name>EasyCaptcha</name>
@@ -23,7 +23,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.7</version>
+            <version>4.12</version>
             <scope>test</scope>
         </dependency>
     </dependencies>