more polishing

- use updated gradle plugin for java8

build.gradle

@@ -6,7 +6,7 @@ buildscript {
         }
     }
     dependencies {
-        classpath 'org.jastadd.preprocessor:testing:0.2.13-30'
+        classpath 'org.jastadd.preprocessor:testing:0.2.14-32'
     }
 }
 
@@ -159,7 +159,7 @@ jastadd {
     parser.genDir = 'src/gen/java/org/jastadd/relast/parser'
 
     // default options are: ['--rewrite=cnta', '--safeLazy', '--visitCheck=false', '--cacheCycle=false']
-    extraJastaddOptions = ['--lineColumnNumbers', '--visitCheck=true']
+    extraJastAddOptions = ['--lineColumnNumbers', '--visitCheck=true']
 }
 
 // publish gitlab project