Rework RHEL setup flow on UI - WIP
Download button is accessible by Enter
PRD-1199 Releases page slight redesign
Fix race condition
Async account info validation in Setup RHOS dialog
Account data UI validation
Fix: render rhel license type properly
Fix: onInputKeyDown function && valid hostname regex
Get rid of check_before_deployment and handle setup_redhat task instead
Fixes: no release_id field in RedHatAccount model; regexp test instead match
Get rid of download_release and handle setup_redhat task instead
findTask accessor for convenience
Bullet-proof release id accessor for tasks
Update setup_redhat task url
setup_redhat -> redhat_setup
Check every redhat_setup task for correct release_id
Some fixes in polling for redhat_setup task