Did PEP8 changes and added unittests

Changed code structure to pep8 Standards (Thanks @Nina)
Added docstrings to classes and functions
Created unittests for page rendering and about page content
Changed the main.json file location to the more "django like" fixtures
filename in the main app
Merge branch 'develop' of https://github.com/gitumarkk/DjangoWebsite into gitumarkk-develop

Conflicts:
	umonya/DB_README.txt
Made changes suggested by @NinaS