Switch to libuv 1.0.2 on new libuv home

Made this PR regarding the discussion: https://github.com/aspnet/aspnet-docker/issues/21

I also performed a quick test against latest libuv 1.1.0 and it worked fine. Maybe we shall jump to 1.1.0 instead of 1.0.2. Regarding [1.1.0 changelog](https://github.com/libuv/libuv/releases/tag/v1.1.0), there are no significant changes (especially for unix env.), so in my opinion skipping 1.0.2 and move on to 1.1.0 is relatively safe.