Breaking changes in 3.2 #60

Hey,

Thanks for the great library!

Would it be possible to set the new quiet_zone default value to retain the way qr codes were generated before?
1360a08#diff-3233ddf655466c009f70e217b8c0e7b1b3175b38eb58332168930e1fa90d488bR42

This requires making changes to the settings or adding them where before it was not necessary to retain functionality.

Or what is the setting value if you don't want white border around the qr_code?
I tried 0 but that fails with:

{{2025, 4, 3}, {5, 27, 33, 656}} [error] ** (MatchError) no match of right hand side value: {:error, "You can not update the matrix. Size of submatrix is same or bigger than size of matrix!"}

Thank you