Auto-create UPLOAD_ROOT in devel mode
Add a helper script for database initialization
Remove unused README for the VM image
Enable deprecation warnings in DEBUG mode

In Python 2.7, DeprecationWarnings are disabled by default. But they are
useful for porting to newer Django versions.

Conflicts:
	src/settings/base.py
Use django.contrib.staticfiles

This is the default Django way of serving static files.

For deployment, the collectstatic command can be used to collect all static
files into one directory and serve it using a 'real' webserver.

In runserver mode, static files for django admin apps as well as custom
apps are automatically served by the included webserver.

Conflicts:
	src/templates/attestation/attestation_edit.html
	src/templates/attestation/attestation_list.html
	src/templates/base.html
	src/templates/solutions/checker_result_list.html
Fix DATABASES deprecation warning
Fix template loader deprecation warnings
Add support for different sendfile methods

Uploaded files may be served efficiently by front-end webservers
like Apache2 or nginx using the X-Sendfile or X-Accel-Redirect
headers. The default is let Django serve the content, which is
slower, but works everywhere. The other methods may be enabled by
setting SENDFILE_METHOD to either 'apache2' or 'nginx' in the
settings module.
Finish the sendfile method code
Add Makefile with compile and clean target
Fix indentation warnings found by 'make compile'
Add git submodule setup to the readme
Cleanup and move valid configuration to contrib
Fix typos
Fix a bunch of mistakes
Fix template spelling and entity errors
Remove GA code from source

GA code should be added at the configuration time, e.g. in the login
message chunk.
Add runserver target to Makefile
Fix typo
Remove unused sessionprofile app

The database table 'sessionprofile_sessionprofile' must be dropped
manually, after this step 'python manage.py cleanup' works again.