Honor /HTTP_PROXY/i environment variable if set when executing babushka bootstrap script
Add Babushka bootstrap branch configuration setting

Signed-off-by: Laurent Vallar <val@zbla.net>
Workaround on delayed/unavailable @machine.ssh_info, use non-blocking configuration call

Signed-off-by: Laurent Vallar <val@zbla.net>
Use default POSIX shell when executing babushka bootstrap script

Signed-off-by: Laurent Vallar <val@zbla.net>
Merge pull request #4 from Val/username_ssh_info_unavailable_workarount

Workaround on delayed/unavailable @machine.ssh_info, use non-blocking configuration call
Merge pull request #5 from Val/honor_http_proxy_and_use_default_posix_shell_on_babushka_bootstrap

Honor http proxy and use default posix shell on babushka bootstrap
Merge pull request #6 from Val/add_babushka_bootstrap_branch_configuration_setting

Add Babushka bootstrap branch configuration setting
Refactoring bootstrap babushka method
Edit readme and  bump version to 0.0.5
Fix ssh username issue and bump version to 0.0.6