upgrade to gradle 2.3-rc-1 and use gradleApi() in grails-shell

Author: lhotari

build.gradle

@@ -458,6 +458,6 @@ apply {
 }
 
 task wrapper(type: Wrapper) {
-    gradleVersion = '2.2.1'
+    gradleVersion = '2.3-rc-1'
     jarFile = 'gradle/wrapper/gradle-wrapper.jar'
 }

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Mon Dec 01 21:06:36 CST 2014
+#Tue Jan 27 11:31:31 EST 2015
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.2.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.3-rc-1-bin.zip

grails-shell/build.gradle

@@ -6,10 +6,6 @@ repositories {
     jcenter()
 }
 
-ext {
-    gradleToolingApiVersion = "2.3-20150115093000+0000" // gradle.gradleVersion
-}
-
 dependencies {
     compile project(":grails-bootstrap")
     compile "org.apache.ant:ant:$antVersion"
@@ -18,7 +14,7 @@ dependencies {
     compile "org.fusesource.jansi:jansi:$jansiVersion"
     compile "jline:jline:$jlineVersion"
     compile "org.eclipse.jgit:org.eclipse.jgit:3.5.2.201411120430-r"
-    compile "org.gradle:gradle-tooling-api:$gradleToolingApiVersion"
+    compile gradleApi()
 
     compile("org.springframework.boot:spring-boot-cli:$springBootVersion")