Use zeromq to build cluster net.
edbroker & edworker & edclient combined with vnode & object OK.
Added completed command line options to edbroker, edworker and edclient.
Fix bugs.
Paranoid Pirate Pattern
edclient supports retry function
Added avarage speed to edclient.
Action PUT & GET.
Tested lmdb, lsm-sqlite4, rocksdb, leveldb
edworker supports multi writers in vnode.
Added cboost for pure c wrapper on boost
Added fuse supoort by edfs.
Fix bugs.