I haven't spend time in writing unit tests for the new functions. I figure it's
better I postpone it after our next meeting.
commit 90afbe857342e6bf4e6d9791cddafaf840430f57
Author: yilongl <yilongl@cs.stanford.edu>
Date: Sat Mar 19 19:12:38 2016 -0700
Fix deadlock in CoordinatorService::init
Made TableManager::recover asynchronous to avoid deadlock during coordinator
service startup phase.
RAM-572 #close