Merge pull request #91 from aplanas/master

Fix positional arguments in search method.
enqueue more screenshots and accept more VNC updates

This is the 189th try to get closer to the problem of the lost keys
Merge pull request #92 from os-autoinst/coolo_vnc

enqueue more screenshots and accept more VNC updates
don't have yet another skip level of similarity
try even harder to fetch the updates

For some reason the bootloader keys are there but we miss redraws. So
fetch a full screen every 5s
tidied code
add mapped key for \b
Merge pull request #93 from nilxam/add_mapped_key

add mapped key for \b
let the test fail if a serial has recorded fail
- move the startqemu code into the backend directly

and catch qemu's output directly in the log file not in stderr.txt
even if a test doesn't die but is set to failed, let it fail
Merge pull request #94 from os-autoinst/coolo_let_serial_fail

let the test fail if a serial has recorded fail
Merge pull request #95 from os-autoinst/coolo_move_qemu

- move the startqemu code into the backend directly
Merge pull request #96 from os-autoinst/coolo_let_failed_fail

even if a test doesn't die but is set to failed, let it fail
display the qemu debug output right in the log file unbuffered
avoid to type overly long commands -

type_string needs to finish in 60 seconds or there will be a timeout
Merge pull request #97 from os-autoinst/coolo_split_upload_cmd

Coolo split upload cmd