randomElement fix and unitDelimiter for units

package.json

@@ -1,6 +1,6 @@
 {
   "name": "salet",
-  "version": "1.7.3",
+  "version": "1.7.4",
   "description": "A general client-side framework for cybertext interactive fiction games.",
   "keywords": ["ifiction", "interactive fiction", "games", "coffee-script", "text", "menu"],
   "homepage": "https://salet.su",

src/random.coffee

@@ -44,7 +44,7 @@ class Random
 
   # return a random element from an array
   randomElement: (elements) ->
-    return elements[@rand(elements.length - 1)]
+    return elements[@rand(elements.length)]
   
   # return odds of a (value + dN) being larger than target, rounded down
   odds: (value, target, n) ->

src/room.coffee

@@ -110,6 +110,9 @@ class SaletRoom
       if salet.autosave and @canSave
         salet.saveGame()
 
+    # A string between unit descriptions.
+    @unitDelimiter = ""
+
     ###
       An internal function to get the room's description and the descriptions of
       every unit in this room.
@@ -136,7 +139,7 @@ class SaletRoom
       )
 
       for description in unitDescriptions
-        retval += " "+description.content
+        retval += @unitDelimiter + description.content
 
       return markdown(retval)