bulk upload controller
Merge branch 'master' of https://github.com/nkskalyan/Team_Everest

Conflicts:
	blueprints/backend/__init__.py
	requirements.txt
merge
Merge branch 'master' of https://github.com/nkskalyan/Team_Everest
bulk upload integration without download zip
Merge branch 'master' of https://github.com/nkskalyan/Team_Everest

Conflicts:
	blueprints/frontend/templates/BulkUpload.html
bulk upload with download zip