micro image needs more free space

[illegalprime]

the micro image currently doesn't have enough free space to boot (currently an extra 20MB of space is given to it). possible solutions:

1. figure out what's taking up so much space at boot and minimize it (hardest)
2. make the boot-resizing process take up less space in extra utils (harder)
3. load a mini image and see how much extra space it takes up compared to how much it started with, use this value to update the micro image (easy).

if no. 3 is implemented this could be a good beginner task.