added fallback design package rewrite
nav menu dropdown (we need to apply some nice styles)
added MegaMenu module. If enabled (System>Configuration>Catalog>Category Top Navigation>MegaMenu Enabled) then a top menu template is used and it allows to set a static block content for every top level category (this static block can be easily created from the category edit form, inside Display Settings tab)
Merge branch 'epiatti/mega-menu'