Release Grails 3.1.8

Author: graemerocher

build.gradle

@@ -21,7 +21,7 @@ apply plugin: 'idea'
 ext {
     bintrayPublish = false
     // Sets release version
-    grailsVersion = '3.1.8.BUILD-SNAPSHOT'
+    grailsVersion = '3.1.8'
     isBuildSnapshot = grailsVersion.endsWith(".BUILD-SNAPSHOT")
     isTravisBuild = System.getenv().get("TRAVIS") == 'true'
 

grails-core/src/test/groovy/grails/util/GrailsUtilTests.java

@@ -35,7 +35,7 @@
 public class GrailsUtilTests extends TestCase {
 
     public void testGrailsVersion() {
-        assertEquals("3.1.8.BUILD-SNAPSHOT", GrailsUtil.getGrailsVersion());
+        assertEquals("3.1.8", GrailsUtil.getGrailsVersion());
     }
 
     @Override