Freifunk ImageBuilder

To test the changes I did you have to clone openwrt

    git clone https://git.openwrt.org/openwrt/openwrt.git

After that you have to copy the feeds.conf.default in openwrt-git-folder to

    cp feeds.conf.default feeds.conf

after that add to feeds.conf
    
    src-git freifunk https://github.com/freifunk/openwrt-packages.git
    src-git freifunkberlin https://github.com/freifunk-berlin/firmware-packages.git

Then do

    ./scripts/feeds update -a
    ./scripts/feeds install -a

after that go to 

    cd feeds/freifunkberlin

and after that go to https://github.com/freifunk-berlin/firmware/milestone/13 and look at the linked PRs in the issues.
Go to some PR, go to commits, click on the commit hash and copy the url, e.g.

    https://github.com/freifunk-berlin/firmware-packages/pull/206/commits/58ba513300873e77f25f514093fc01769b2c3576

add '.patch' to that url, e.g.

    https://github.com/freifunk-berlin/firmware-packages/pull/206/commits/58ba513300873e77f25f514093fc01769b2c3576.patch

Now you apply the patch to the freifunkberlin feed by doing

    curl [URL with .patch] | git am 

e.g.

    curl https://github.com/freifunk-berlin/firmware-packages/pull/206/commits/58ba513300873e77f25f514093fc01769b2c3576.patch | git am 
  
Now you have applied one commit of the PR. If the PR is only one commit, then you are already done.

Here is some list, I will update

    curl https://github.com/freifunk-berlin/firmware-packages/pull/206/commits/58ba513300873e77f25f514093fc01769b2c3576.patch | git am 
    curl https://github.com/freifunk-berlin/firmware-packages/commit/ca668e492c17d3e046a7ee58c31202f6c5b28627.patch | git am 
    curl https://github.com/freifunk-berlin/firmware-packages/commit/45d382a3c6ab166d017f20946b6bee49daf6944c.patch | git am 

I think it would be more easy to do in the feeds/freifunkberlin

git cherry-pick <commit>

or

git merge <PR-branch>

seems more natural than downloading the patches via web, if you have them in your checkout of the repo already.