docs: Minor update on install guide
Merge pull request #336 from cstavr/hotfix-0.16.1

astakos: Improve presentation of terminated projects
burnin: Correct Popen call for arp removal
Prepare for 0.16.1rc1
Bump version to 0.16.1rc2
admin: Use BRANDING_FONTS_CSS_URLS in templates

Update the base template of snf-admin-app to respect the
BRANDING_FONTS_CSS_URLS settings.