Upgrades Gradle and Android build tools versions.

src/rosjava_build_tools/create_android_project.py

@@ -30,8 +30,8 @@ def parse_arguments():
                         help='The name for the package')
     parser.add_argument('-s', '--sdk-version',
                         action='store',
-                        default='17',
-                        help='Android sdk version [17]')
+                        default='18.1.1',
+                        help='Android sdk version [18.1.1]')
     parser.add_argument('-p', '--android-package-name',
                         action='store',
                         default='com.github.rosjava.android.pkg_name',

src/rosjava_build_tools/templates/android_package/build.gradle.in

@@ -15,7 +15,7 @@
  */
 
 task wrapper(type: Wrapper) {
-    gradleVersion = '1.7'
+    gradleVersion = '1.8'
 }
 
 buildscript {

src/rosjava_build_tools/templates/rosjava_package/build.gradle.in

@@ -15,7 +15,7 @@
  */
 
 task wrapper(type: Wrapper) {
-    gradleVersion = '1.7'
+    gradleVersion = '1.8'
 }
 
 buildscript {