Update gradle-api to 2.3

libraries/tools/kotlin-gradle-plugin-core/gradle_api_jar/build.gradle

@@ -1,7 +1,7 @@
 apply plugin: 'java'
 apply plugin: 'maven'
 
-version = '1.6'
+version = '2.3'
 group = 'org.jetbrains.kotlin'
 
 
@@ -25,5 +25,5 @@ artifacts {
 }
 
 task wrapper(type: Wrapper) {
-    gradleVersion = '1.6'
+    gradleVersion = '2.3'
 }

libraries/tools/kotlin-gradle-plugin-core/gradle_api_jar/gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Sun May 04 12:35:04 MSK 2014
+#Wed Apr 22 16:22:48 MSK 2015
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=http\://services.gradle.org/distributions/gradle-1.6-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.3-bin.zip

libraries/tools/kotlin-gradle-plugin-core/gradle_api_jar/pom.xml

@@ -7,12 +7,13 @@
     <properties>
         <maven-plugin-anno.version>1.4.1</maven-plugin-anno.version>
         <maven.version>3.0.4</maven.version>
+        <gradle.api.jar.version>2.3</gradle.api.jar.version>
     </properties>
 
     <groupId>org.jetbrains.kotlin</groupId>
     <artifactId>gradle-api</artifactId>
     <packaging>pom</packaging>
-    <version>1.6</version>
+    <version>${gradle.api.jar.version}</version>
 
     <build>
         <plugins>
@@ -30,7 +31,7 @@
                         <configuration>
                             <artifacts>
                                 <artifact>
-                                    <file>build/libs/gradle-api-1.6.jar</file>
+                                    <file>build/libs/gradle-api-${gradle.api.jar.version}.jar</file>
                                     <type>jar</type>
                                 </artifact>
                             </artifacts>