Merge pull request #17 from blegat/master

Remove '\n' for perror in cp2 and fix my name in AUTHOE
AUTHORS encoding bugfix
Release version updated
Merge pull request #18 from dsarkozi/master

AUTHORS encoding bugfix + Release version 2012 to 2013
Remove trailing whitespace from every file

I carefully removed (but really quickly thanks to a regexp in vim)
every trailing whitespace from every file (except images).
Now,
$ grep -G " $" * -r
only returns images and
$ git diff --ignore-space-at-eol
comparing the changes I made to HEAD, or
$ git log -p --ignore-space-at-eol
does not print anything so I'm sure I haven't changed anything else.
Unify encoding to UTF-8

One can check that
$ file */*/*/*/* | grep ISO
$ file */*/*/* | grep ISO
...
no longer return anything.