grep works with command

updated build scripts
acceptence tests break, files are written as root when user is node

install_deps.sh

@@ -2,12 +2,3 @@
 wget -qO- https://get.docker.com/ | sh
 apt-get install poppler-utils vim ghostscript --yes
 npm rebuild
-usermod -aG docker node
-
-mkdir -p /app/cache
-chown -R node:node /app/cache
-
-mkdir -p /app/compiles
-chown -R node:node /app/compiles
-
-chown -R node:node /app/bin/synctex