Fix selector is not defined javascript error
Fix selector is not defined javascript error

Closed #167

hisie/django-select2,rizumu/django-select2,SmithsonianEnterprises/django-select2,SmithsonianEnterprises/django-select2,pbs/django-select2,strongriley/django-select2,hobarrera/django-select2,strongriley/django-select2,anneFly/django-select2,strongriley/django-select2,anneFly/django-select2,dulaccc/django-select2,dantagg/django-select2,hisie/django-select2,emorozov/django-select2,hobarrera/django-select2,dulaccc/django-select2,dantagg/django-select2,DMOJ/django-select2,rizumu/django-select2,bubenkoff/django-select2,anneFly/django-select2,DMOJ/django-select2,hobarrera/django-select2,applegrew/django-select2,patgmiller/django-select2,applegrew/django-select2,bubenkoff/django-select2,DMOJ/django-select2,rizumu/django-select2,hisie/django-select2,dulaccc/django-select2,bubenkoff/django-select2,emorozov/django-select2,patgmiller/django-select2,SmithsonianEnterprises/django-select2,applegrew/django-select2,emorozov/django-select2,dantagg/django-select2,patgmiller/django-select2,pbs/django-select2,pbs/django-select2