Sublime Text 3: No longer writes as root everywhere, other improvements

sublime-text-3/run.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+set -e
+if [ -z ${NEWUSER+x} ]; then
+	echo 'WARN: No user was defined, defaulting to root.'
+	echo 'WARN: Sublime will save files as root:root.'
+	echo '      To prevent this, start the container with -e NEWUSER=$USER'
+	/usr/src/sublime_text/sublime_text -w
+else
+	# The root user already exists, so we only need to do something if
+	# a user has been specified.
+	useradd -s /bin/bash $NEWUSER
+	# If you'd like to have Sublime Text add your development folder
+	# to the current project (i.e. in the sidebar at start), append
+	# "-a /home/$NEWUSER/Documents" (without quotes) into the su -c command below.
+	# Example: su $NEWUSER -c "/usr/src/sublime_text/sublime_text -w -a /home/$NEWUSER/Documents"
+	su $NEWUSER -c "/usr/src/sublime_text/sublime_text -w"
+fi