Remove scheme when preprocessing URLs from environment config
Test user avatar URL is changed to simpler one
Typo fixes
Slightly increase test timeout because it requires more time with real requests
Fix avatar URL in the fixture
Calculate "secure" flag value from the prepared URL
Set HTTPS by default for backplane, whoami, submit, logout endpoints
Use correct URL
Add mechanism to control whether requests to some endpoints use secure protocol
typo fix
Remove undescore symbol from names (these things are private anyway)
Merge branch 'lizard/backplane-related-https' into rc3.0.14