Fix Frédéric's name.
Use ?\( etc. to write bracket characters

This is the recommended syntax as per the GNU Emacs Lisp Reference
Manual, section 2.3.3.1 Basic Char Syntax. It prevents Emacs Lisp
indentation engine from getting confused in the code of the syntax
table defvar.
Merge pull request #5 from Fanael/master

A couple of stylistic fixes