dev version, not complete yet
implement zfs info cache mechanism
add ssh tunnel implementation
zfs: rename pool_name to _zfs_pool_name
create STAGINGS and SNAPSHOTS while creation of pool instead of XXX_cmd_init
cleanup stack: append item with '+=()' instead of '[last-index]=' syntax
pbadmin-cmd-init: remove -x flag. ident to increase readibility
add server side push support
add client side push support
push: refactoring for better reusibility
add pbentry as universal entry
push: fix unable to read from stream issue
add search command
zfs: do not try to create new zpool if failed to importing
zfs: fix import issue by -f
introduce normalized snapshot id to simplify mapping between snapshot and dataset
modulize generation of line of autohorized key file
push: pass snapshot series via commandline arguement instead of stdin/stdout
zfs: fix cache issue which caused by unexpected dataset creation time after pushed onto server
add pull command