v1.1.4

What's Changed

• Add tox for testing multiple django and wagtail versions by @rubenhesselink in #16
• Add flake8, isort and black by @rubenhesselink in #17
• Add tests for new_tab feature by @rubenhesselink in #18
• Fix codestyle by @rubenhesselink in #19
• Fix problem with urls with an @ present being invalid. by @rubenhesselink in #20

Full Changelog: v1.1.3...v1.1.4