Style cleanups
Die TAB, die.
Add spaces before []
Add a few comments
Add zhash_purge method
zcertstore: Change internal storage of certs from zring to zhash
Merge pull request #683 from Q-Leap-Networks/pull-ztimeout-style-cleanup

Style cleanups
Merge pull request #684 from Q-Leap-Networks/pull-zcertstore-use-zhash

Pull zcertstore use zhash
Rename zring to zring_old
Add equipotent zring class