harmonizing hyphens

[entorb]

Same as in rrthomas#32, I suggest using this old tool of mine to check for inconsistency of hyphens.
For example: auriez-vous = 9x vs. auriez vous = 1x

How to:

1. cat *.tex > ../join.tex
2. Upload to the tool

Note: the old tool has some char encoding issue with French (probably bad utf-8 implementation), but the result should hopefully understandable.