Use bintray instead of maven central for imported projects

Change-Id: I597cfe6414546d8b4a4ae3bafb43f12f536a279c
diff --git a/gradle-import/src/main/java/com/android/tools/gradle/eclipse/GradleImport.java b/gradle-import/src/main/java/com/android/tools/gradle/eclipse/GradleImport.java
index 0304ce4..c221bac 100755
--- a/gradle-import/src/main/java/com/android/tools/gradle/eclipse/GradleImport.java
+++ b/gradle-import/src/main/java/com/android/tools/gradle/eclipse/GradleImport.java
@@ -128,7 +128,7 @@
     static {
         String repository = System.getProperty(MAVEN_URL_PROPERTY);
         if (repository == null) {
-            repository = "mavenCentral()";
+            repository = "jcenter()";
         } else {
             repository = "maven { url '" + repository + "' }";
         }