Merge pull request #731 from jeff1evesque/python_data_creator

#728: Replace 'datetime.now()' -> 'datetime.utcnow()'
#697: README.md, fix typo within 'note'
Merge pull request #732 from jeff1evesque/doc_linux_packages

#697: README.md, fix typo within 'note'
#734: README.md, fix typo in 'bash script' subsection
Merge pull request #735 from jeff1evesque/doc_bash_script

#734: README.md, fix typo in 'bash script' subsection
#730: data_creator.py, adjust SQL query string formatting