feat(premium): add mystery-item handling

script/content.coffee

@@ -210,7 +210,7 @@ api.gear =
   flat: {}
 
 _.each gearTypes, (type) ->
-  _.each classes.concat(['base', 'special']), (klass) ->
+  _.each classes.concat(['base', 'special', 'mystery']), (klass) ->
     # add "type" to each item, so we can reference that as "weapon" or "armor" in the html
     _.each gear[type][klass], (item, i) ->
       key = "#{type}_#{klass}_#{i}"

script/index.coffee

@@ -129,7 +129,7 @@ api.updateStore = (user) ->
     true
   # Add special items (contrib gear, backer gear, etc)
   changes = changes.concat _.filter content.gear.flat, (v) ->
-    v.klass is 'special' and !user.items.gear.owned[v.key] and v.canOwn?(user)
+    v.klass in ['special','mystery'] and !user.items.gear.owned[v.key] and v.canOwn?(user)
   changes.push content.potion
   # Return sorted store (array)
   _.sortBy changes, (item) ->