This is relatively painless for lokinet as it already had workarounds
during 0.8 dev work for the things macos hated in 10.13.
Dependencies, however, were not being built with the proper macos target
junk, so this fixes that.
* it lives?
* clean up
* add readme and add x86_64 to abi filters
* disable route poking on android
* make it compile on android
* it compiles!!111
* typofix
* re-enable ccache for android
* run unbound stuff in another thread because LOL windows
* because unbound runs in another thread callbacks for libunbound need to be wrapped in a deferred call so they are done in the logic thread
* bump sqlite3 dep because it's gone, repin hash.
