Remove *() hack now that rust upgrade is complete. Fixes memory corruption bug #2412.
make servo::run() and opts::Opts.n_render_threads public for use in embedding crate
fix build of embedding crate

I blame @larsbergstrom for this failure.
serious mode engaged: start of embedding crate using FFI

current status

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[ ] Successfully crashing CEF

[X] Successfully not crashing CEF
add readme for using embedding crate