update version number for shockwave; bug 983047
defer loading of persona include.js (bug 983556)
slim down content ratings api responses (bug 982991)
Merge pull request #1871 from ngokevin/iarcopt

slim down content ratings api responses (bug 982991)
bump(django-pymemcache): 333882b689d33df6a9c3a091616ec8e4fdb3b3f4
fix typos; thanks Besnik_b
 Tests failing on Zamboni: AttributeError: 'module' object has no attribute 'make_ext_id' (bug 986149)

 - Update reference to new external_id interface
Merge pull request #1881 from JaredKerim-Mozilla/986149

 Tests failing on Zamboni: AttributeError: 'module' object has no attrib...