Added setup.py

Realised people probably couldn't even use the damn thing cause they
most likely didn't have bs4 installed. Well that sucks.

Added the setup.py to the local parser to allow
  ` python setup.py install `
which will install the bs4 package. Also obviously included the bs4
package in this commit.

Note that it will need sudo (probably) to make the installation.
Merge branch 'master' of https://github.com/lmj112/CATEScraper
Cleaned up folders.