By submitting this pull request, I confirm that...
[x] My changes may be used in a future commercial release of VVVVVV
[x] I will be credited in a CONTRIBUTORS file and the "GitHub Friends"
section of the credits for all of said releases, but will NOT be compensated
for these changes
Changes:
This adds Polish language files!
Legal Stuff:
By submitting this pull request, I confirm that...
CONTRIBUTORSfile and the "GitHub Friends" section of the credits for all of said releases, but will NOT be compensated for these changes