Giant Pendant update

* this update fixes #250
* it removes Susy and switches to Flexbox
* addresses issue with logo messing up if other than pendant icon is
inserted
* fixes issue with images with class “omg—right” causing scroll on the
right side
* changes post-alt to have the image behind the text
* numerous other adjustments
adding post-alt-2.html
Merge branch 'master' of https://github.com/CosmoCMS/Cosmo

Conflicts:
	themes/Pendant/partials/one.html