[refactor] Alphabetized imports, structured according to pep8

Also fixed spacing between imports and body code if needed.
[bugfix] Broken feed extraction, b/c of unescaped non-regex chars
[bugfix] Forgot to init logger object in extractors.py
[refactor] Adhere entire codebase to pep8
[refactor] Methods from extractors, formatters, cleaners now take item params, not article or source objects
[refactor] Methods from extractors, formatters, cleaners now take item params, not article or source objects
Merge branch 'huge-refactor-codelucas' of https://github.com/codelucas/newspaper into huge-refactor-codelucas

Conflicts:
	newspaper/extractors.py
Merge pull request #71 from codelucas/huge-refactor-codelucas

Huge refactor: entire codebase in PEP8, imports alphabetized, bugfixes, core changes