Make use of `include_on_features_page` under /products/feature-comparison
After the discussion in https://gitlab.slack.com/archives/C0NFPSFA8/p1515427827000150, make it so that using include_on_features_page: false
for a feature, it won’t appear in https://about.gitlab.com/products/feature-comparison/.
Currently this is only used for https://about.gitlab.com/features/.
Example: Swimlanes is a feature not yet released, but @victorwu has already added it in features.yml
:
swimlanes is not a feature currently, so it shouldn’t appear in the comparison page