WIP: Library update: Allow to use renamed installers
Original merge request: !227 (closed)
Fix #38 (closed)
The MD5 caching is currently broken.
If it was working, there would be a big delay at start but no delay when the md5sum check message is printed. Archives will be MD5-ed even if there are no MD5 sums available.
When the installer is not the first one in the list, it will get checksumed early, even if it has the right name.
eval call could probably be replaced by using export directly.