Update rsyntaxtextarea to 3.1.3

Author: tisoft

pom.xml

@@ -70,7 +70,7 @@
     <dependency>
       <groupId>com.fifesoft</groupId>
       <artifactId>rsyntaxtextarea</artifactId>
-      <version>3.1.2</version>
+      <version>3.1.3</version>
     </dependency>
     <dependency>
       <groupId>org.antlr</groupId>