Revert "Simplify setup by sharing common settings in global environment"

This reverts commit 1031bcb373b03736518d8ad29488c4e6bec63d15.

It really does not work as travis ignores global variables which are
used in matrix as well.

Signed-off-by: Michal Čihař <michal@cihar.com>
Do not explicitely set tests to run

We can rely on Django to run all our tests by default.

Signed-off-by: Michal Čihař <michal@cihar.com>
Default to sqlite database for tests if not specified

This allows us to simplify travis setup.

Signed-off-by: Michal Čihař <michal@cihar.com>
Whitespace cleanup

Signed-off-by: Michal Čihař <michal@cihar.com>
Basic tox support

Signed-off-by: Michal Čihař <michal@cihar.com>
Add linkcheck to lint run

Signed-off-by: Michal Čihař <michal@cihar.com>
Consistently link to docs.weblate.org instead of mixing weblate.readthedocs.org and docs.weblate.org

Signed-off-by: Michal Čihař <michal@cihar.com>
Fix several external links

Signed-off-by: Michal Čihař <michal@cihar.com>
Consistenly link to Django 1.6 docs

Signed-off-by: Michal Čihař <michal@cihar.com>
Revert "Add linkcheck to lint run"

This reverts commit a4cc5b45a7f55d88dd3175b2ae8b3c9c41d9ccc8.

As urllib2 does not support SNI, this fails with many valid links.
Merge branch 'master' into bootstrap