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Merge branch 'feature-peerreview' of github.com:OpenMOOC/moocng into feature-peerreview

Conflicts:
	moocng/locale/es/LC_MESSAGES/django.mo
	moocng/locale/es/LC_MESSAGES/django.po
Merge branch 'feature-peerreview' of github.com:OpenMOOC/moocng into feature-peerreview
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