Merge pull request #3 from ancorgs/correct_case_in_docs

s/OpenQA/openQA in the documentation
set correct tap device when NICTYPE==tap

- tap device is set to tap + (worker id - 1 )
- assign different MAC for each worker
fix code style
Merge pull request #4 from aaannz/tap_support

set correct tap device when NICTYPE is tap
actually use allowed_hosts config value
test allowed_hosts functionality
update writing tests part
minor fixes
Merge pull request #6 from nilxam/docs_write_test

update writing tests part
update the explaination for two examples
Merge pull request #7 from nilxam/docs_write_test

update the explaination for two examples
Merge pull request #5 from aaannz/auth_ip_config

actually use allowed_hosts config value
update test writing guide
Merge pull request #8 from lnussel/master

update test writing guide
update for send_key with its parameters
Merge pull request #9 from nilxam/docs_write_test

update for send_key with its parameters
add some pitfalls documentation
Merge pull request #10 from lnussel/master

add some pitfalls documentation
avoid undefined warning
kill os-autoinst and qemu instead of isotovideo

os-autoinst can't handle the error itsself as the detection of the
crash is in a thread that has no way to signal the main thread