initial version
- connect to zvm54 linux154
- check that the machine is not in use
- comment how to turn on debug trace
- actually try s3270
- recognize HCPLGA054E Already logged on
- use named arguments for expect_3270
- strip whitespace and leading "data: " from Snap(Ascii) output
- start enabling simple sequence of commands
- die more often (croak/confess) instead of just rambling (cluck)
- trace the 3270 session (screen trace & connection trace)
- handle the screenshot lines as lines, not as single \n separated
  string
- grab_more_until_running: i.e. collect the full output for commands
  with much output
- extract the 3270 status in a nice, accessible hash
- for now kill the VM guest when in use
- get through FTPBOOT, scanning for the right input lines for server
  and distribution
- removed trailing whitespace
- move installation instructions to markdown
- add working version to get going locally on openSUSE
- die (confess) when methods are not implemented
- explain what the base function init() does
- explain what the base function do_start_vm() does
- comment on the purpose of the web api that is provided
- progress through the editor
clean up 'use module' order
- collect TODOs from ihno, coolo
- add -charset us
- Wait(Output) legitimately returns 'error'.  prepare to allow that.
- clean up low level communication to host terminal.
- add wait_output function
- completely rewrite expect_3270 to maintain buffering queue and
  intelligently wait for specific output, w/ optional timeout
- should add the queue to the previous patch ...
make the sequence_3270 function use the new send_3270
- create helpers for interaction with linuxrc
- rewrite do_start_vm to use all the new glory