[tests] Rewrite tests for Mocha and expect.js
Update code style
Preliminary support for full page parsing (hindawi-blog)
Remove test array
Bug fixes and refactors
* Refactor PageParser adding a new parseFullArticle method
* Fix bug with full page articles of CachedFeed articles
* Add Scientific Saudi fb page
Enable gzip compression for feeds
Added fb page for Ahmed Khaled Tawfik
Fix author in hindawi.json