use rb helper for publish functions
mixin rb-helpers
Revert "mixin rb-helpers"

This reverts commit f0d450e1e1b998a600698322320ee648f0a44e12.
remove old jekyll site
Revert "use rb helper for publish functions"

This reverts commit a97aebbb91a4411228d6e3ad14e350b8410222c5.