pshell v0.2.0

 * Shell methods execute, follow, follow_lines, follow_callback, follow_write,
   and follow_write_return now accept keyword argument "strip_linefeed", which
   defaults to True. If set to False, linefeeds are left intact in the
   returned output.
   (Forest Bond)

 * Shell methods execute, follow, follow_lines, follow_callback, follow_write,
   and follow_write_return now accept keyword argument "decode", which defaults
   to True. If set to False, shell output is not decoded and raw byte strings
   are returned.
   (Forest Bond)

 * Shell now provides method check_last_status, which checks that exit status
   of the last run command (via "echo $?") and raises an exception if it is
   non-zero.
   (Forest Bond)

 * Shell method execute now accepts keyword argument "wait", which defaults to
   True. If set to False, execute returns None immediately instead of waiting
   for the prompt to return. This is intended to be used with long-running
   programs or programs that need to be fed data on standard input. When the
   program has exited, callers should call method wait_for_prompt (and possibly
   also check_last_status) before executing another command.
   (Forest Bond)