am 7ecf7983: spawn a worker thread in onReceive.

* commit '7ecf798315d4c54e6435f13e0eaaf5c1a0a089b2':
  spawn a worker thread in onReceive.
diff --git a/Android.mk b/Android.mk
index 2393a88..4a8b158 100644
--- a/Android.mk
+++ b/Android.mk
@@ -31,7 +31,7 @@
         android-support-v4 \
         calendar-common
 
-LOCAL_SDK_VERSION := 17
+LOCAL_SDK_VERSION := current
 
 LOCAL_RESOURCE_DIR := $(addprefix $(LOCAL_PATH)/, $(res_dirs))