Update OpenUDID.m
Merge pull request #50 from lgw51/patch-1

Update OpenUDID.m
OpenUDID deprecation announced

please read the following blog post for the rationale:
http://blog.appsfire.com/udid-is-dead-openudid-is-deprecated-long-live-a
dvertisingidentifier/
Merge pull request #1 from ylechelle/master

update