seems to hold up pretty well.
uv::hl API is affected.. had to do work on tests and std::timer code that
leverages the global loop/high_level_loop API.
see test_stress_gl_uv_global_loop_high_level_global_timer for a stress
example.. it takes a while to run, but it exits cleanly (something I could
never accomplish with earlier iterations of the global loop)
- moved global loop tests, as well.. will add tests in uv_hl that encompass
rolling your own high_level_loop via uv::hl::run_high_level_loop()
- also whitespace cleanups and misc warning cleanup..
- doesn't work on 32bit linux