finalize on stop
[Mod] Now can successfully stop on /stop
[Add] SIGTERM in unix
[Add] stop on os kill on windows
[Mod] Change the old TODO list
[Mod] Change the file name of TODO list so that we can read it on github
[Mod] Changed the interface so that push service provider can report
errors asyn.ly.
[Mod] C2DM and GCM don't need to report errors in async way
[Mod] Added a nop implementation on apns. Ready to support Feedback
[Mod] PushBackEnd now ready to process error asyn.ly.
[Mod] Need more changes in APNs
[Mod] Don't close the body twice
[Mod] Check nil for dp and psp
[Add] Feedback service
[Mod] fixed issu 10
[Mod] go fmt
go fmt
go fmt
Merge branch 'exp'