Fixed goBack and normaliseTabs, updated git links

package.json

@@ -1,11 +1,11 @@
 {
   "name": "salet",
-  "version": "1.6.16",
+  "version": "1.6.17",
   "description": "A general client-side framework for cybertext interactive fiction games.",
   "keywords": ["ifiction", "interactive fiction", "games", "coffee-script", "text", "menu"],
   "homepage": "http://salet.oreolek.ru",
   "bugs": {
-    "url" : "https://git.oreolek.ru/oreolek/salet-module/issues"
+    "url" : "https://gitlab.com/oreolek/salet-module/issues"
   },
   "license" : "MIT",
   "dependencies": {},
@@ -21,6 +21,6 @@
   "main": "lib/index.min.js",
   "repository": {
     "type" : "git",
-    "url" : "https://git.oreolek.ru/oreolek/salet-module"
+    "url" : "https://gitlab.com/oreolek/salet-module"
   }
 }

src/markdown.coffee

@@ -6,7 +6,9 @@ Copyright 2015 Bruno Dias
 normaliseTabs = (text) ->
   if not text? or typeof(text) != "string" or text == ""
     return ""
-  lines = text.split('\n');
+  lines = text.split('\n')
+  if not lines?
+    lines = text
   indents = lines
     .filter((l) => l != '')
     .map((l) => l.match(/^\s+/))

src/salet.coffee

@@ -61,14 +61,14 @@ class Salet
     on to the room. Note that this is the only one of
     these global handlers that can consume the event.
     ###
-    @beforeAction = (situationId, actionId) ->
+    @beforeAction = (roomId, actionId) ->
 
     ###
     This function is called after carrying out any action in
     any room. It is called after the corresponding
     room has its `act` method called.
     ###
-    @afterAction = (situationId, actionId) ->
+    @afterAction = (roomId, actionId) ->
 
     ###
     This function is called after leaving any room. It is
@@ -306,13 +306,14 @@ class Salet
     # Also, steps = 1 is the current room
     @goBack = (steps = 2) ->
       window.history.back()
-      if @progress.path.length == 1
+      if @progress.path.length <= 1
         location = @start
       else if @progress.path.length > steps
         location = @progress.path[@progress.path.length - steps]
       else
         return @goBack(steps - 1)
-      @processClick(location)
+      if location?
+        @processClick(location)
 
     # Transition between rooms.
     @doTransitionTo = (newRoomId, force = false) ->