#159082374 send users a verification link via email upon successful signup

[ssewilliam]

What does this PR do?

• sends users a verification link via email upon successful signup

Description of Task to be completed?

• Using Django's inbuilt Emailing system too to send users an a verification email when they signup successfully

How should this be manually tested?

• Clone the repo Authors Heaven
  --git clone https://github.com/andela/ah-backend-spaces.git

• cd into it and create a new virtual enviroment
  -- virtualenv venv

• Install project dependencies
  --python install -r requirements.txt

• attempt sign up as a normal user

Any background context you want to provide?

• I used smtplib to connect to google server and login with my credentials.
• I also allowed less secure apps to connect to my gmail account.
• I aslo Disabled Captcha for this app to login to my gmail account without challenging Captcha.

What are the relevant pivotal tracker stories?

• #159082374

Screenshots

Logging in

Verification email

[coveralls]

Coverage increased (+0.2%) to 96.835% when pulling 049380d on ft-send-verification-link-159082374 into c3d6ab3 on develop.