rename modules.email

[abargar]

Having a module named email causes an issue when running crawler.py. This is because email conflicts with an internal dependency of the package requests and causes it to import the wrong code.

• Renamed email to email_utils
• Updated import statement inside app.py

Feel free to suggest a different name - I was feeling uncreative.

See this StackOverflow for an explanation of the error: https://stackoverflow.com/questions/32874326/python-email-module-importerror-no-module-named-utils

Example stacktrace:

[pbenzoni]

Approved! but I'll leave it to you to merge