[config-support] Failing Feature: title from config should end up in html
[config-support] Created Config. It can read TOML.
[config-support] Created FileStringReplacer
[config-support] Substituting <title> now. Finally, Cucumber passes again!
[config-support] Substituting meta author="" now.
[config-support] Substituting a theme now
[config-support] Condensed generate feature scenarios

I created three piecemeal scenarios as I implemented the three
distinct parts of configuration, and this pulls those three together
into a single scenario where a config.toml is supplied.

I am now checking for the "sensible defaults" in the original scenario
where no config.toml is supplied.
[config-support] CHANGELOG now reflects config support
Merge pull request #9 from jedcn/config-support

Support central configuration file