Ignore .gitignore file by default in fs.list

Partial fix of #93
Do not pass SUMMARY.md to generator, fixes #93

We want to parse SUMMARY.md but not generate a file from it, thus it
should be removed from the list of files to be processed by the
generator
Add more test for quiz (related to #100)
Fix #100: fix section test isQuiz
In parse/page remove global marked settings

Highlighter settings were global, moved them to the render function
(where they should have been)
Disable automatic highlighting

Fallback to no highlighting rather that potentially funky highlighting
Removed duplicate line of readme
Merge pull request #105 from ptagell/master

Removed duplicate line of readme
Merge pull request #104 from GitbookIO/fix/auto_highlighting

Disable automatic highlighting
Normalize code language before highlighting
Bump version to 0.2.1
Fix #107: Render all the page in single page format
Remove useless caracter from page format
Improve style for pdf and ebook
Fix state update after navigation
Improve styling for pdf and ebook
Bump version to 0.2.2
Update README.md
Fix navigation on chrome for iOS: disable pushState
Add editor and twitter links in the readme