YAML Upload/Download & HoundCI Fixes

All HoundCI fixes have been completed and users can now download and upload YAML files. The changes that have been made regarding the HoundCI fixes are in the main Tagging merge file at https://github.com/MarkUsProject/Markus/pull/1947. 

For testing, YAML files were generated and then re-uploaded by the system. Each of the files generated were successfully re-uploaded by the system.
I'm confused; was xml not working? This branch seems to be executed when the user wants xml.