We are not using them at the moment and we always can investigate git
history to add them back.

This should make much more clearer what are usable and what are not
configuration options.

When branch is provided to feed with `;` we should also replace that
with exact hash.

This fixes problem with ignored packages that were introduced by patch.
What this does is that it installs packages after patching is done. It
also first updates indexes again before installation.

Because this feature was originally split between two function but
patch_feeds had to be inserted to the middle of get_feeds I decided to
drop both and used upper repatch_feeds instead. This means that we are
no longer able to get and patch feeds separately but I think that this
separation was almost useless.

These packages were pushed to upstream master. This is backport for
OpenWRT 18.06.

Ups I forgot to add name for new feed. O:-)

These options are selection of sensible options that were set in 4.4
config for Turris 1.x but were not in 4.14 config. This is only
temporally patch to test if this is going to work. We should later clean
this patch.

This was requested by used on Turris forum. Let's try to add it.

Note that this theme is merge to luci feed master so this feed should
not be added to our master. It is intended only for 4.x releases.

It seems that when we disable eth0 that leads to switch port 6 it causes
kernel panic on null pointer dereference. This is probably symptom of
some other error but for now we just won't disable this port and that
helps.

Previous patch was causing null pointer dereference kernel panic with
phy variant. This one hopefully should fix it.

Foris no longer uses python2 so we can drop python2 version.

This package is nasty and it was fixed in upstream but not in stable.
Let's just ignore stable and have that package in such a nasty state.

This reverts commit 5bd9b714.

This did not helped so let's drop this revert patch and wait for kernel
developer to investigate the problem.