af8307 fixes a number of problems with auto-reconnect that have been reported recently. Owen and Darrel did a lot of work in analyzing failures and this revision addresses the problems they encountered, plus a couple of others exposed by stress-testing.
Problem statement: When a locator is forced out of the cluster it goes into auto-reconnect mode. If there are problems during recreation of the locator or cache the auto-reconnect code was hitting NPEs and other issues.
