ImageMagick commands other than resize?

[graemeduckett]

Hey, I'm trying other commands in the config file like 'format' and 'crop' but nothing appears to be happening. Is there support for the standard ImageMagick commands other than resize?

There is a little overlap here with #10

[tjjjwxzq]

For crop, at least, you need to specify the value like:

crop:  100x300+0+0

(width x height + x-offset from left + y-offset from top) http://www.imagemagick.org/Usage/crop/

If only width x height is specified (with no offsets) you will get a No such file or directory error.

Tested on jekyll (3.6.2) and jekyll-minimagick (0.04)