Style fix for getters

src/org/moodle/ci/branches/Branch.groovy

@@ -8,15 +8,15 @@ class Branch {
     protected String[] supportedDatabases
 
     def getDefaultBranch() {
-        return this.defaultBranch
+        return defaultBranch
     }
 
     def getPhpVersions() {
-        return this.supportedPHPVersions
+        return supportedPHPVersions
     }
 
     def getDatabases() {
-        return this.supportedPHPVersions
+        return supportedPHPVersions
     }
 
     def getHighestSupportedVersion() {

src/org/moodle/ci/repositories/Repository.groovy

@@ -4,6 +4,6 @@ class Repository {
     protected String url
 
     def getUrl() {
-        return this.url
+        return url
     }
 }