Add methods for ajax progress updating
UI components for AJAX reload of deploy progress

Conflicts:

	app/views/staypuft/deployments/_deployment_summary.html.erb
Merge pull request #212 from mtaylor/reload_progress_ajax

Reload deployment progress bar with ajax
v0.1.17
work around foreman safe mode whitelisting issue

For foreman safe mode, !false fails whitelisted evaluation.
For now I added a separate method for determining non_ha
Merge pull request #222 from sseago/work-around-whitelisting

work around foreman safe mode whitelisting issue