This commit updates the Django dependency version to 1.9.2 and gvacommon
to 0.3.0 that provides gvacommon.settings_utils.get_env_variable. The
gnuviechadmin.settings.base module now uses this implementation instead
of an own copy and the corresponding test has been removed too.
This commit fixes all warnings created by flake8 by removing unused
imports and variable assignments. Some wrongly indented lines are now
indented correctly.
This commit adds a refactoring for gnuviechadmin.celery to make the
installed apps detection testable. The test is added in
gnuviechadmin.tests.test_celery. Debug code in gnuviechadmin.urls is no
excluded from coverage reporting.
This commit adds new tests for the gnuviechadmin.context_processors
module. The module gnuviechadmin.tests has been moved into a separate
directory for a more clear structure.