Add unit test for quiz false positivies
Split section classification to separate files

Maybe have a sections folder in the future and one per type
(quiz/exercise/normal) ?
Rewrite quiz logic to be more robust

Fixes #470
Allow quiz titles in validation
Merge pull request #472 from GitbookIO/fix/quizzes

Fix/quizzes
Bump version to 1.1.1
Add include support, with variables and the whole shebang

Fixes #462
Fix small incompatibility mistake
Merge pull request #482 from GitbookIO/feature/includes

Add include support, with variables and the whole shebang
Corrected a small typo in Plugins description
Merge pull request #483 from dharmeshkakadia/patch-1

Corrected a small typo in Plugins description
Fix bottom border on nested ul
Update highlight.js@8.3.0
Use book.json to store variables
Add 'variables' to book.json doc
Merge pull request #485 from citizenmatt/Nested_list_spacing

Fix bottom border on nested ul
Add plugin infinitescroll
Fix #487: Use generated toc as base for ebook generation
Normalize template paths
Improve toc in ebook (Fixes #338, #322)