squash for #46 select2_tags
Merge branch '46_admin_select2_tags' into staging2

* 46_admin_select2_tags:
  squash for #46 select2_tags

Conflicts:
	app/assets/javascripts/art_electronics/application.js
	app/views/art_electronics/posts/index.html.haml
	app/views/art_electronics/posts/show.html.haml
	db/schema.rb
merge fix
squash for #46 select2_tags
merge fix
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FIN
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