Core-upgrade-2.21-121

Hi,

First ("just for the records"): I'm taking some days off. Until 24.06.2018 you can find me here (from time to time): https://www.utersum.de/?page_id=89 ;-)

Second: I made a clean build from current 'next' today and noticed that 'ROOTFILES' starts with a blank line. I don't know if this could cause us any troubles!?

Third: It's BIG. 'core-upgrade-2.21-121.ipfire' has now ~103 MB. I'm hoping that this won't cause any troubles, too.

Fourth: "./make.sh gettoolchain" gives me:

... Jun 7 19:57:57: Load toolchain image for i586 Jun 7 19:57:57: error downloading ipfire-2.21-toolchain-20180606-i586 toolchain for i586 machine ...

Best to all and take care..., Matthias