[devtools] CubicWebTC._check_html may have to deal with unicode or bytes
If called with template=None, CubicWebTC.view will not go through
main-template, and return the unicode data from the view directly
instead of encoded data.
option_group_changed('port', 'main', 'web')
option_group_changed('query-log-file', 'main', 'web')
option_group_changed('profile', 'main', 'web')
option_group_changed('max-post-length', 'main', 'web')