Allow Gradle 2.10.

It was checking for 2\.[2-9].* before.

Change-Id: I1786b7b8563a7844945b23b60c8e765836bb61e5
diff --git a/build-system/gradle/src/main/groovy/com/android/build/gradle/BasePlugin.java b/build-system/gradle/src/main/groovy/com/android/build/gradle/BasePlugin.java
index 91f423d..1cab723 100644
--- a/build-system/gradle/src/main/groovy/com/android/build/gradle/BasePlugin.java
+++ b/build-system/gradle/src/main/groovy/com/android/build/gradle/BasePlugin.java
@@ -115,7 +115,7 @@
 public abstract class BasePlugin {
 
     private static final String GRADLE_MIN_VERSION = "2.2";
-    public static final Pattern GRADLE_ACCEPTABLE_VERSIONS = Pattern.compile("2\\.[2-9].*");
+    public static final Pattern GRADLE_ACCEPTABLE_VERSIONS = Pattern.compile("2\\.([2-9]|\\d{2,}).*");
     private static final String GRADLE_VERSION_CHECK_OVERRIDE_PROPERTY =
             "com.android.build.gradle.overrideVersionCheck";
     private static final String SKIP_PATH_CHECK_PROPERTY =