Fix `SyntaxError`, call `super` and properly call `super`.
Skip `unit.templates.jinja_test.TestGetTemplate.test_strftime` test if `timelib` is not installed.
Install `timelib` in the Travis-CI environment.
Only create `TMP` if it doesn't already exists (hint: `--no-clean`)
Simplify the Syndic configuration testing.

* Inherit the master configuration file on the syndic one.
* Recreate the Syndic on the test. Don't pass it as a module global.
Actually, the Syndic config test case can be a simple unit test.
Merge pull request #6199 from s0undt3ch/develop

Fix `SyntaxError`, call `super` and properly call `super`.