FORT COLLINS — Mock newsprint riddled with inside jokes papered the walls. College students mainlining caffeine quibbled over headlines above the dulcet beats of a Lady Gaga song. And young journalists with a slice of Krazy Karl’s Pizza in one hand and a red pen in the other edited copy for grammar mistakes well into the evening. The basement headquarters of Colorado State University’s Rocky Mountain Collegian newspaper came alive Tuesday night with the incomparable energy of a student newsroom during the production of a new edition. In this case, the students were giving articles last-minute tweaks for their issue commemorating Saturday’s Rocky Mountain Showdown, the longstanding football rivalry between the CSU Rams and the University of Colorado Buffaloes. Members of the CU Independent are welcomed at the Rocky Mountain Collegian offices in Fort Collins, Colorado, on Tuesday, Sept.