Add ability to create SeleniumBase website tours using IntroJS

• Add ability to create SeleniumBase website tours using IntroJS
• See https://github.com/usablica/intro.js to learn more about IntroJS

If the Google Auth password expires soon, get the next one.

If the Google Auth password expires soon, get the next one.

Add ability to handle time-based Google Authenticator logins

Add ability to handle time-based Google Authenticator logins

Update the requirements

Update the requirements.

• Mostly updating versions of python libraries being used.

Use raw strings for regular expressions

Use raw strings for regular expressions

Tour updates

Tour updates

Handle deprecation warnings

Handle deprecation warnings

Update pytest version

Use pytest==3.8.0

Update html logging and screenshots

• Update html logging
• Take fullscreen screenshots when possible

Python 3.7.0 compatibility

Fixing bugs that were seen when switching to Python 3.7.0

After some investigation, I learned that the functionality of Python's re.escape() has changed between Python 3.6.5 and Python 3.7.0:

Python 3.6.5:

>>> import re
>>> re.escape('"')
'\\"'

Python 3.7.0:

>>> import re
>>> re.escape('"')
'"'

Also fixing an unrelated bug with Geckodriver automatic downloads. To do this, I switched to using urllib3.