Checkpoint of data usage UI, graphs and lists.

Chart of network usage over time, with draggable "sweep" bars for
inspection region and warning/limits.  Talks with NetworkStatsService
for live data, and updates list of application usage as inspection
region changes.

Change-Id: I2a406e6776daf7d74143c07ec683c10fe711c277
diff --git a/Android.mk b/Android.mk
index 83df136..b171dbd 100644
--- a/Android.mk
+++ b/Android.mk
@@ -1,6 +1,8 @@
 LOCAL_PATH:= $(call my-dir)
 include $(CLEAR_VARS)
 
+LOCAL_STATIC_JAVA_LIBRARIES := guava
+
 LOCAL_MODULE_TAGS := optional
 
 LOCAL_SRC_FILES := $(call all-java-files-under, src)