broken unit test in FF: tests.i18n

[liucougar]

in FF, only enable tests._base.xhr and tests.i18n, tests.i18n will fail with the following message:

GROUP "tests.i18n" has 1 test to run
 Error: Bundle not found: salutations in tests , locale=de
     ERROR IN:
  (function (t) {var salutations;salutations = dojo.i18n.getLocalization("tests", "salutations", "de");t.assertEqual("Hallo", salutations.hello);salutations = dojo.i18n.getLocalization("tests", "salutations", "en");t.assertEqual("Hello", salutations.hello);salutations = dojo.i18n.getLocalization("tests", "salutations", "en-au");t.assertEqual("G'day", salutations.hello);salutations = dojo.i18n.getLocalization("tests", "salutations", "en-us");t.assertEqual("Hello", salutations.hello);salutations = dojo.i18n.getLocalization("tests", "salutations", "en-us-texas");t.assertEqual("Howdy", salutations.hello);salutations = dojo.i18n.getLocalization("tests", "salutations", "en-us-new_york");t.assertEqual("Hello", salutations.hello);salutations = dojo.i18n.getLocalization("tests", "salutations", "en-us-new_york-brooklyn");t.assertEqual("Yo", salutations.hello);salutations = dojo.i18n.getLocalization("tests", "salutations", "xx");t.assertEqual("Hello", salutations.hello);salutations = dojo.i18n.getLocalization("tests", "salutations", "zh-cn");t.assertEqual("u4F60u597D", salutations.hello);})
 FAILED test: salutations

if tests._base.xhr is run after tests.i18n, then tests.i18n won't fail

[Adam Peller]

Dup of #2757, but a very keen observation re: xhr