Changed title_head_suffix to be configurable in frontmatter and in config.rb. title_head_suffix now affects only the last part of <title> tag, not the ' @ ' part.
Changed title_head_suffix to be configurable in frontmatter and
in config.rb. title_head_suffix now affects only the last part of
<title> tag, not the ' @ ' part.

measurement-factory/site-spawner,measurement-factory/site-spawner