cleaned up style, chnage nav li items to fixed width
adjusted top nav
new style for cardicle, more 3d, new transitions

100ms universal transitions (causes bug in responsive reflow
unfortunately!)
significant redesign of cardicle including fix for padding and margins
improved transitions for reflows, updated readme

Important: transitions lengthened for some responsive reflows,
shortened for others to reduce messy reflows. Min-height was changed
for articles for the 25em-width views to not constrain content.
more transition fixes, shuffled/refactored some other CSS
additional transition smoothing, fixed min-heights and border-bottoms for cardicle items
Merge branch '20130713style'