Comment 12 for bug 885819

Have taken the linaro-image-tools bit and changed it to linaro-fetch-image since it would appear the only missing bit is that linaro-fetch-image doesn't support displaying the license to the user so they can accept it.

It would be nice to cache license acceptance. Is it OK to download a copy of the license when the user accepts it and assume that if the license doesn't change, the user doesn't need to accept it again (download the license every time, if the license downloaded matches one that has been accepted, doen't ask the user to accept it again)?