use docker to build plugin

Dockerfile

@@ -0,0 +1,25 @@
+FROM ubuntu:16.10
+MAINTAINER BlackCarrot <dev@blackcarrot.be>
+LABEL description="DashPayments for WooCommerce Plugin"
+
+RUN /bin/echo 'set -o vi' >> /etc/profile
+RUN apt-get update
+RUN apt-get -y upgrade
+RUN apt-get -y install aptitude vim openssl build-essential zip unzip
+RUN apt-get -y install php7.0 php7.0-fpm php7.0-gmp php7.0-bcmath php7.0-gd php7.0-mcrypt php7.0-curl php7.0-json composer php-composer-ca-bundle
+RUN rm -fr /var/cache/apt/*
+
+COPY . /dp4wc/dashpay-woocommerce/
+WORKDIR /dp4wc
+
+# install deps & check syntax
+RUN (cd /dp4wc/dashpay-woocommerce/ && composer install)
+RUN (cd /dp4wc/dashpay-woocommerce/ && /bin/bash check.sh)
+
+# remove files not required for plugin
+RUN cd /dp4wc/dashpay-woocommerce/ && rm -fr .git* Dockerfile composer* README.md check.sh
+
+RUN zip -r dashpay-woocommerce.zip dashpay-woocommerce/
+RUN rm -fr /dp4wc/dashpay-woocommerce/
+
+CMD ["/bin/bash", "--rcfile", "/etc/profile"]