WIP: more work on the docker structure, still not finished with 4_run

1_base: builds a base image, based on Ubuntu 16.10
2_buildpy: builds two images:
	2a: an image that can build Python 3.6
	2b: an image that contains the built Python 3.6 in /opt/python
3_buildwheels: builds an image to build wheel files, puts them in ../4_run
4_run: the production runtime image, which can't build anything and just runs.

docker/4_run/000-default.conf

@@ -0,0 +1,39 @@
+<VirtualHost *:80>
+	# EnableSendfile on
+	XSendFile on
+	XSendFilePath /data/storage/pillar
+	XSendFilePath /data/git/pillar
+	XSendFilePath /data/venv/lib/python2.7/site-packages/attract/static/
+	XSendFilePath /data/venv/lib/python2.7/site-packages/flamenco/static/
+	XsendFilePath /data/git/blender-cloud
+
+	ServerAdmin webmaster@localhost
+	DocumentRoot /var/www/html
+
+	# Available loglevels: trace8, ..., trace1, debug, info, notice, warn,
+	# error, crit, alert, emerg.
+	# It is also possible to configure the loglevel for particular
+	# modules, e.g.
+	# LogLevel info ssl:warn
+
+	ErrorLog ${APACHE_LOG_DIR}/error.log
+	CustomLog ${APACHE_LOG_DIR}/access.log combined
+
+	WSGIDaemonProcess cloud processes=4 threads=1 maximum-requests=10000
+	WSGIPassAuthorization On
+
+	WSGIScriptAlias / /data/git/blender-cloud/runserver.wsgi \
+		process-group=cloud application-group=%{GLOBAL}
+
+	<Directory /data/git/blender-cloud>
+		<Files runserver.wsgi>
+			Require all granted
+		</Files>
+	</Directory>
+
+	# Temporary edit to remap the old cloudapi.blender.org to cloud.blender.org/api
+	RewriteEngine On
+	RewriteCond "%{HTTP_HOST}"   "^cloudapi\.blender\.org" [NC]
+	RewriteRule (.*) /api$1 [PT]
+
+</VirtualHost>