Add French Language, add ScotLandPHP, add resend invitation

Really thanks to Thomas Dutrion @tdutrion for all contibutions.

Fix schedule withoutOverlapping crash.

v2.6.5

Merge branch 'master' of github.com:vluzrmos/lumen-slackin

Releasing German Translation

v2.6.4

Update .env.example

fixed assets not minified.

v2.6.3

rebuilding assets for production.

v2.6.2

rebuilding assets.

v2.6.1

Allowing by env variable to hide users status  message on homepage.

Lumen 5.1 and Lang Detector 1.0

v2.6.0

upgrading tinker

Using vluzrmos/language-detector

v2.5.0

fix composer lock.

Using vluzrmos/locale-detector

v2.4.0

Update readme.md

v2.3.0: Fixed composer.json and added translated messages on console command …

Translated console messages and fixed composer.json to use tinker on require-dev