Removes get_uuid_from_prev_args method

With the removal of previous web_command logic, the get_uuid_from_prev_args method has been simplified to a single command.  The method has been removed and the appropriate slices have been updated as needed.

Fixes #273
Merge pull request #278 from mtnbikenc/issue-273-refactor-get_uuid

Fixes #273 Removes get_uuid_from_prev_args method