[1.5.x] Fixed spelling errors

Backport of ec04fd1344 from master

docs/_ext/djangodocs.py

@@ -120,7 +120,7 @@ class DjangoHTMLTranslator(SmartyPantsHTMLTranslator):
     # which is a bit less obvious that I'd like.
     #
     # FIXME: these messages are all hardcoded in English. We need to change
-    # that to accomodate other language docs, but I can't work out how to make
+    # that to accommodate other language docs, but I can't work out how to make
     # that work.
     #
     version_text = {

docs/_ext/literals_to_xrefs.py

@@ -110,7 +110,7 @@ def fixliterals(fname):
     
 #
 # The following is taken from django.utils.termcolors and is copied here to
-# avoid the dependancy.
+# avoid the dependency.
 #