Restructure static files into a single directory

src/coffee/underscore_mixins.coffee

@@ -0,0 +1,30 @@
+###
+Crafting Guide - underscore.coffee
+
+Copyright (c) 2014-2015 by Redwood Labs
+All rights reserved.
+###
+
+_.mixin
+
+    slugify: (text)->
+        return null unless text?
+
+        result = text.toLowerCase()
+        result = result.replace /[^a-zA-Z0-9_]/g, '_'
+        result = result.replace /__+/, '_'
+        result = result.replace /^_/, ''
+        result = result.replace /_$/, ''
+        return result
+
+    composeSlugs: (part1, part2)->
+        return "#{part1}__#{part2}"
+
+    decomposeSlug: (slug)->
+        return [null, null] unless slug?
+
+        parts = slug.split '__'
+        if parts.length is 1
+            parts = [ null, parts[0] ]
+
+        return parts