Translated activities 1-5
Removed 'alternativeName' as a possible property of an activity
Typo in Remember the future
Translated activities 6-10
Fixed typo
Translate activity 10 in french
Create index_pl.php
translate activity 11 in french
Translate activity 12 in french
translate activity 13 in french
Translate activity 14 in french
Merge pull request #8 from wkedzierska/patch-1

Create index_pl.php
Translate activity 15 in french
Corrections
Minor fixes and typos
Merge pull request #7 from DirtyF/content-translation-fr

Content translation fr
Merge branch 'master' of https://github.com/findingmarbles/Retromat
Added 'Three Words' and cleaned up after hasty launch of French version
Fixed bug in language switcher
Added Frank as a translator