Created initial folder structure for Greek on lesson 3 / Term 1
Translated step 1 of lesson 3 in Greek
Translated up to step 2 of lesson 3 in Greek
Translated up to step 3 of lesson 3 in Greek
updated language so that it corresponds to the terminology used on the system
Completed Greek translation for lesson 3
reviewed lesson 3 translation and translated the notes for club leaders
Merge remote-tracking branch 'upstream/master'
Started Greek translation on Term 1/Lesson 4
Translated in Greek Term1/Lesson4
Translated in Greek Term1/Lesson4 - Notes for club leaders
Update felix_&_herbert.md
Greek translation of Term 1 / Lesson 1
Remove trailing whitespace on Whack-a-witch folder
Fix typos in Desert Race

Closes #17
Add German translation
Merge pull request #11 from taxifisch/master

Add German translation
Update CONTRIBUTING to mention WIP PRs
Remove Turkish folder temporarily to avoid confusion
First pass at lesson 01.