Dockerfile update to bring us up to php v7.1 for Laravel 5.5 (#7084)

* bump up to php7.1

& change deprecated MAINTAINER to a LABEL so it is visible with `docker inspect`

* AND modapache ><

* 2 updates required to get software-properties+ppa

Dockerfile

@@ -1,19 +1,21 @@
 FROM ubuntu:xenial
-MAINTAINER Brady Wetherington <uberbrady@gmail.com>
+LABEL maintainer="uberbrady, hinchk"
 
+RUN apt-get update && apt-get install -y software-properties-common
+RUN LC_ALL=C.UTF-8 add-apt-repository -y ppa:ondrej/php
 RUN apt-get update && apt-get install -y \
 apache2 \
 apache2-bin \
-libapache2-mod-php7.0 \
-php7.0-curl \
-php7.0-ldap \
-php7.0-mysql \
-php7.0-mcrypt \
-php7.0-gd \
-php7.0-xml \
-php7.0-mbstring \
-php7.0-zip \
-php7.0-bcmath \
+libapache2-mod-php7.1 \
+php7.1-curl \
+php7.1-ldap \
+php7.1-mysql \
+php7.1-mcrypt \
+php7.1-gd \
+php7.1-xml \
+php7.1-mbstring \
+php7.1-zip \
+php7.1-bcmath \
 patch \
 curl \
 vim \
@@ -27,8 +29,8 @@ RUN phpenmod mcrypt
 RUN phpenmod gd
 RUN phpenmod bcmath
 
-RUN sed -i 's/variables_order = .*/variables_order = "EGPCS"/' /etc/php/7.0/apache2/php.ini
-RUN sed -i 's/variables_order = .*/variables_order = "EGPCS"/' /etc/php/7.0/cli/php.ini
+RUN sed -i 's/variables_order = .*/variables_order = "EGPCS"/' /etc/php/7.1/apache2/php.ini
+RUN sed -i 's/variables_order = .*/variables_order = "EGPCS"/' /etc/php/7.1/cli/php.ini
 
 RUN useradd -m --uid 1000 --gid 50 docker