[#9] Rename TestArticle to ArticleSpec. Use only one article instance to test Article class. Reduce amount of assertions.
Merge branch 'master' of github.com:michlord/ruby-course-2014
[#10] Rename TestArticleManager to ArticleManagerSpec. Reduce the amount of assertions.
Rename TestMockArticle to MockArticleSpec. test_random_word checks if generated words are present in WORD_LIST. Moved MockArticle initialization to setup().