Stylistic cleanup for kangjianbin's improvements

I haven't tested this fully myself, as I don't have a working ipop
install, but the changes are pretty simple.
Merge pull request #10 from PiPeep/kangjianbin-cleanup

Stylistic cleanup for kangjianbin's improvements
[debug?] next_ips does not exist anymore, local_uid always in the

next_ips does not exist anymore

local_uid always in the list so should test whether empty or not.
remove
Merge pull request #11 from kyuhojeong/debug

[debug?] next_ips does not exist anymore, local_uid always in the ...