Changes

The config.sh step can take quite a while, because it downloads a large amount of data. Once that finishes, you need to apply a patch to the gecko checkout (for now; the patches are making their way through reviews etc.). [https://pastebin.mozilla.org/6855009 6863396 Download the patch from here] and then apply to your <code>B2G/gecko</code> subdirectory by running the command