Merge branch 'demolish-useerror' into 'master'

js/helpers/metadata.js

js/store/classification.js

js/store/elements.js

js/store/entity.js

js/store/image.js

js/store/index.js

test/Element/Metadata/Metadata.js

test/store/classification.js

test/store/elements.js

test/store/entity.js

test/store/image.js

test/store/index.js

vue/Element/Main.vue

vue/Element/Metadata/Metadata.vue

vue/Element/Transcription/Box.vue

vue/Entity/Details.vue

vue/Entity/Elements.vue

vue/Image/Elements.vue

vue/Paginator.vue