Prettify test output.

requirements/test-ci-base.txt

@@ -1,4 +1,6 @@
 pytest-cov
+pytest-sugar
+pytest-travis-fold
 codecov
 -r extras/redis.txt
 -r extras/sqlalchemy.txt

tox.ini

@@ -43,7 +43,8 @@ setenv =
     dynamodb: TEST_BACKEND=dynamodb://@localhost:8000
     dynamodb: AWS_ACCESS_KEY_ID=test_aws_key_id
     dynamodb: AWS_SECRET_ACCESS_KEY=test_aws_secret_key
-
+PASSENV =
+    TRAVIS
 basepython =
     2.7: python2.7
     3.4: python3.4