Add installation of git

Author: mattboll

Dockerfile

@@ -1,7 +1,7 @@
 FROM node:slim
 
 # Install imagemagick
-RUN apt-get update -y && apt-get install -y imagemagick && apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+RUN apt-get update -y && apt-get install -y imagemagick git && apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
 RUN npm install -g gulp
 
 RUN mkdir -p /usr/src/app