The fashion show season is over, unfortunately, but it ended with a bang at Paris Fashion Week. It looks like we’ll be seeing a lot of whimsy in Spring/Summer 2013–did you catch the Chanel Hula Hoop bag or the fuzzy Celine shoes? Never mind hula hoop bags, the excitement during Paris Fashion Week mostly revolved around the Hedi Slimane vs. Raf Simons showdown. Here’s the background: Slimane, who has mostly been working as a photographer since he left Dior Homme, is the new creative director at Saint Laurent (the brand has lost the “Yves” under Slimane’s direction). Simons is the new …