Upgrade to latest alpine 3.4 version

[eko]

This pull request upgrades this repository to the latest Alpine version, see: http://alpinelinux.org/posts/Alpine-3.4.0-released.html

[guillemcanal]

Can you confirm that the PHP FPM binary is still php-fpm ? If not, you may have to update https://github.com/guillemcanal/alpine-nginx-php/blob/master/rootfs/etc/services.d/php-fpm/run

Thanks mate

[eko]

@guillemcanal You were right, I've updated the PR, container now builds & run correctly ;)

[guillemcanal]

Hey! I'll review again you PR this afternoon. It will be merged in a short while ;)

[eko]

Do you still need this PR or can I close it? Alpine is now version 3.5 ;)