Update API doc for new login api
Merge pull request #24 from eslimaf/task/update_api_doc

Update API doc for new login api
Fix create customer/technician without a previous token assigned
Merge pull request #26 from eslimaf/bugfix/create_user

Fix create customer/technician
Fix authentication bug when token is empty
Merge pull request #27 from eslimaf/bugfix/create_user

Fix authentication bug when token is empty