Merge pull request #1 from jpdeplaix/master

Cleaning
Update README.rst
Add an error when displaying a post that doesn't exist
Added Pandoc syntax highlighting.
Cleaned code.
Implemented comments printing.
Merge pull request #2 from Thooms/master

Added comments (without insert)
Modified CSS.
Deleted useless </a>.
Reduced code font size.
Started comments insertion in db.
Added insertion function.
Removed useless function.
Added export.
Comments now work :)
Merge pull request #3 from Thooms/master

Added comments.
Remove endline spaces
Add the signature for some functions
Improving the getValue system from Mongo