Preserve transparency

[aesopwolf]

By removing the call to flatten() then we're able to preserve the alpha channel automatically without introducing the background attribute

[izaakschroeder]

I think flatten() was originally there due to an issue with older versions of sharp (my original issue here: lovell/sharp#301). I feel it's probably ok to remove this now, though you need to fix up the code errors you have. 😄

[aesopwolf]

Dang, that's what I get for trying to edit source code in the GitHub UI.

[coveralls]

Changes Unknown when pulling cdd0660 on aesopwolf:patch-1 into * on metalabdesign:master*.

[izaakschroeder]

Lovely! Sorry for the delay here, last thing before merging is if we could get these commits all squashed down and tidy up the commit message?

e.g.

Remove unnecessary call to `flatten`.

This allows the user to preserve transparency. The call was originally in place to deal with an older SVG bug.

Then we'll be all set! 😄

[coveralls]

Changes Unknown when pulling 90b2c85 on aesopwolf:patch-1 into * on metalabdesign:master*.

[izaakschroeder]

Shipping as part of #15 😄

[izaakschroeder]

Published as part of + sharp-loader@0.3.3.