This allows smooth execution on systems where git is not configured and
also clearly marks commits that were created by compile_fw and not by
user.

These commands checkout OpenWRT repository with same commits as current
build on repo.turris.cz. You have to specify target branch and board to
make this work.

Revert "feeds.conf: moving turrispackages to the last position (might reduce a number of error messages during the compilation)"

This reverts commit 8c5ac1e4.

feeds.conf: moving turrispackages to the last position (might reduce a number of error messages during the compilation)

There has to be step between 3.x and 4.x version because of other
reasons than updater's incompatibility. That gives us possibility to
define new lowest supported version of updater-ng for 4.x releases.
Thanks to that we can remove some obsolete crap.

It is planned to bump minimal version of updater even higher as soon as
relevant updater's release is out.

This reverts commit 68aa24aa.

luajit: reflect latest upstream changes (see https://git.openwrt.org/?p=feed/packages.git;a=commit;h=ba5e9aa9458c6d12ec8acc3798ea95c3c0cc897a )

If we need them then we should port them and return them to lists.

Will it survive?