Make deletes synchronous to avoid 202.

Also, get some POSTs I missed the last time.
Merge pull request #2219 from erictune/flaky_auth_test

Make deletes synchronous to avoid 202.
Merge pull request #2221 from thockin/dns

Add SkyDNS example
Update glog package to get *Depth() functions.
Merge pull request #2223 from lavalamp/fix2

Update glog package to get *Depth() functions.
Make DNS an option for cluster turnup