Rename "runProguard" to "minifyEnabled"

Recent versions of the Android build tools have renamed this
parameter. Adjusting templates to match.

Change-Id: I17eb647b9823741d967e4729eb66ef1c93855e60
diff --git a/templates/Wear/Wearable/build.gradle.ftl b/templates/Wear/Wearable/build.gradle.ftl
index 5b3b9d2..d3b286d 100644
--- a/templates/Wear/Wearable/build.gradle.ftl
+++ b/templates/Wear/Wearable/build.gradle.ftl
@@ -58,7 +58,7 @@
 
     buildTypes {
         release {
-            runProguard false
+            minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt')
         }
     }
diff --git a/templates/WearPlusShared/Wearable/build.gradle.ftl b/templates/WearPlusShared/Wearable/build.gradle.ftl
index d899708..32bf599 100644
--- a/templates/WearPlusShared/Wearable/build.gradle.ftl
+++ b/templates/WearPlusShared/Wearable/build.gradle.ftl
@@ -59,7 +59,7 @@
 
     buildTypes {
         release {
-            runProguard false
+            minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt')
         }
     }