Merge pull request #333 from zabbix/master

Fixed health check in docker compose files

web-nginx-mysql/ubuntu/Dockerfile

@@ -41,6 +41,7 @@ RUN locale-gen $LC_ALL && \
     echo "deb http://nginx.org/packages/ubuntu/ $DISTRIB_CODENAME nginx" >> /etc/apt/sources.list.d/nginx.list && \
     apt-get ${APT_FLAGS_COMMON} update && \
     apt-get ${APT_FLAGS_PERSISTENT} install \
+            curl \
             mysql-client \
             nginx \
             php5-fpm \