======================= Log Before Release =====================================
2016-12-31: Ver. 0.1-1
  * Add one more advance application with pbdMPI to vignettes.
  * Fix a .pbd_env bug.

2016-12-26: Ver. 0.1-1
  * Add system plink to find_plink() by default.

2016-12-21: Ver. 0.1-1
  * Add --enable-plink.
  * Check with Fedora 25.
  * Adjust invisible and visible returns.

2016-12-17: Ver. 0.1-1
  * More vignette changes.

2016-12-03: Ver. 0.1-1
  * Add intern = FALSE and wait = FALSE to rpc(), ssh(), and plink().
  * Add local port forwarding example to the vignette.
  * Change again for intern and wait.

2016-11-26: Ver. 0.1-1
  * Add more vignettes.

2016-11-24: Ver. 0.1-1
  * Add RPC.CS for pbdCS commands.
  * Add remoter and pbdCS applications to vignettes.
  * Adjust for Solaris and Mac OSX.

2016-11-19: Ver. 0.1-1
  * Move rpcopt and use .pbd_env$RPC.* in arguments.
  * Add RPC.RR for remoter commands.
  * Fix plink authentication problems.

2016-11-13: Ver. 0.1-1
  * Improve rpcopt.

2016-10-15: Ver. 0.1-1
  * Add controls and login design to .pbd_env for default.

2016-10-14:
  * Try Win32-OpenSSH, but it needs more external dependences.

2016-10-08: Ver. 0.1-1
  * Add low/raw level functions, such as ssh(), plink(), run_rpc(), ...

2016-07-27: Ver. 0.1-1
  * Add RPC calls.
  * Add start_remoter(), check_remoter(), and kill_remoter().

2016-07-21: Ver. 0.1-0
  * Initial the package and convert from pbdTERM.
  * Test on xubuntu, windows, and Solaris.
  * Fix windows 64bits.
  * Add ssh.

2015-xx-xx:
  * Initial pbdTERM.
