Implement ThreadContinuing and detach the JDWP thread before it exits.

This fixes Calculator.

Change-Id: Ic38e234a91469e9694e21bbf1507912b542bf908
diff --git a/Android.mk b/Android.mk
index 6de4cfb..e997326 100644
--- a/Android.mk
+++ b/Android.mk
@@ -158,6 +158,7 @@
 	adb sync
 	if [ "`adb shell getprop wrap.com.android.calculator2 | tr -d '\r'`" = "oat_processd" ]; then \
 	  echo wrap.com.android.calculator2 already set; \
+	  adb shell start; \
 	else \
 	  echo Setting wrap.com.android.calculator2 and restarting runtime; \
 	  adb shell setprop wrap.com.android.calculator2 "oat_processd"; \