Version 1.7.1-dev

Merge commit '706f75519ffa158611a9934893ba79ad638b9b81' into 1.7
diff --git a/src/main/java/com/android/tools/r8/Version.java b/src/main/java/com/android/tools/r8/Version.java
index 6164e5e..52963e9 100644
--- a/src/main/java/com/android/tools/r8/Version.java
+++ b/src/main/java/com/android/tools/r8/Version.java
@@ -11,7 +11,7 @@
 
   // This field is accessed from release scripts using simple pattern matching.
   // Therefore, changing this field could break our release scripts.
-  public static final String LABEL = "master";
+  public static final String LABEL = "1.7.1-dev";
 
   private Version() {
   }