Revert "added standard bootstrap assets"

This reverts commit 73542fdd0a35b8fd7acdd693320badcc5b66fd31.
Revert ".span* & .offset* => .col-md-* & .col-md-offset-*"

This reverts commit 6bf0afc10b600ec6d7d106c1f96d9bbc6bb70f60.
Revert ".row-fluid => .row"

This reverts commit c7c4d45e2cdaf6229ca1dac9728802a2f768a954.