Use ng2-file-upload instead of jquery and add tags support to the video

client/.bootstraprc

client/config/webpack.common.js

client/package.json

client/src/app/shared/search/search-field.type.ts

client/src/app/shared/search/search.component.ts

client/src/app/shared/users/auth.service.ts

client/src/app/videos/video-add/video-add.component.html

client/src/app/videos/video-add/video-add.component.scss

client/src/app/videos/video-add/video-add.component.ts

client/src/vendor.ts

client/tsconfig.json

client/typings.json

server/initializers/constants.js

server/middlewares/reqValidators/videos.js

server/models/videos.js