Fix an issue with gradle daemon on gitlab-ci

[bastienpaulfr]

Issue is described here : gradle/gradle#3117

I've added this in Docker file :

RUN apt-get update && apt-get install -y locales && rm -rf /var/lib/apt/lists/* \
	&& localedef -i en_US -c -f UTF-8 -A /usr/share/locale/locale.alias en_US.UTF-8
ENV LANG en_US.UTF-8

I've also added openssh-client to be able to add some trick with ssh on .gitlab-ci.yml

[mindrunner]

Hi, thanks for the contribution. Can you please check if this also affects the Alpine image and if so, fix that one as well?

[bastienpaulfr]

Hi,

This does not affect alpine image. I've just check that. :-)

Nevertheless, it would be nice to have ssh utilities on alpine (I'm not familiar with alpine so I won't do any modifications for it)