misc/androidstudio: version up gradle plugin to 0.2.9

Change-Id: Icedef49c575937fca885e050e569e513bb7880f7
Reviewed-on: https://go-review.googlesource.com/49258
Reviewed-by: Elias Naur <elias.naur@gmail.com>

example/bind/android/hello/build.gradle

@@ -4,7 +4,7 @@
  */
 
 plugins {
-    id "org.golang.mobile.bind" version "0.2.6"
+    id "org.golang.mobile.bind" version "0.2.9"
 }
 
 gobind {

example/ivy/android/ivy/build.gradle

@@ -3,7 +3,7 @@
 // license that can be found in the LICENSE file.
 
 plugins {
-    id "org.golang.mobile.bind" version "0.2.6"
+    id "org.golang.mobile.bind" version "0.2.9"
 }
 
 gobind {

misc/androidstudio/README.md

@@ -5,7 +5,7 @@ gobindPlugin invokes gomobile bind command on the specified package.
 build.gradle:
 <pre>
 plugins {
-  id "org.golang.mobile.bind" version "0.2.6"
+  id "org.golang.mobile.bind" version "0.2.9"
 }
 
 gobind {

misc/androidstudio/build.gradle

@@ -11,7 +11,7 @@ buildscript {
     }
   }
   dependencies {
-    classpath "com.gradle.publish:plugin-publish-plugin:0.9.4"
+    classpath "com.gradle.publish:plugin-publish-plugin:0.9.7"
   }
 }
 
@@ -27,7 +27,7 @@ dependencies {
   testCompile 'junit:junit:4.11'
 }
 
-version = '0.2.8'
+version = '0.2.9'
 
 pluginBundle {
   website = 'https://golang.org/x/mobile'