Bump rand from 0.6.1 to 0.6.3

Bumps rand from 0.6.1 to 0.6.3.

Changelog

*Sourced from [rand's changelog](https://github.com/rust-random/rand/blob/master/CHANGELOG.md).* > ## [0.6.3] - 2019-01-04 > ### Fixes > - Make the `std` feature require the optional `rand_os` dependency ([#675](https://github-redirect.dependabot.com/rust-random/rand/issues/675)) > - Re-export the optional WASM dependencies of `rand_os` from `rand` to avoid breakage ([#674](https://github-redirect.dependabot.com/rust-random/rand/issues/674)) > > ## [0.6.2] - 2019-01-04 > ### Additions > - Add `Default` for `ThreadRng` ([#657](https://github-redirect.dependabot.com/rust-random/rand/issues/657)) > - Move `rngs::OsRng` to `rand_os` sub-crate; clean up code; use as dependency ([#643](https://github-redirect.dependabot.com/rust-random/rand/issues/643)) ##BLOCKER## > - Add `rand_xoshiro` sub-crate, plus benchmarks ([#642](https://github-redirect.dependabot.com/rust-random/rand/issues/642), [#668](https://github-redirect.dependabot.com/rust-random/rand/issues/668)) > > ### Fixes > - Fix bias in `UniformInt::sample_single` ([#662](https://github-redirect.dependabot.com/rust-random/rand/issues/662)) > - Use `autocfg` instead of `rustc_version` for rustc version detection ([#664](https://github-redirect.dependabot.com/rust-random/rand/issues/664)) > - Disable `i128` and `u128` if the `target_os` is `emscripten` ([#671](https://github-redirect.dependabot.com/rust-random/rand/issues/671): work-around Emscripten limitation) > - CI fixes ([#660](https://github-redirect.dependabot.com/rust-random/rand/issues/660), [#671](https://github-redirect.dependabot.com/rust-random/rand/issues/671)) > > ### Optimisations > - Optimise memory usage of `UnitCircle` and `UnitSphereSurface` distributions (no PR)

Commits

- [`ca96671`](https://github.com/rust-random/rand/commit/ca966717965d7243ca7160971f78da2c2da43fb3) Merge pull request [#676](https://github-redirect.dependabot.com/rust-random/rand/issues/676) from dhardy/master - [`88f36aa`](https://github.com/rust-random/rand/commit/88f36aa3a5d85f69d14a27fee9f257512c1f3fbb) Bump version number and changelog - [`ec58ff0`](https://github.com/rust-random/rand/commit/ec58ff047991cca89adcf6e842458f1b6f9b422a) Re-export optional `rand_os` WASM dependencies as features, and make `std` re... - [`ec634c3`](https://github.com/rust-random/rand/commit/ec634c31bcb814d45ab9e1e1fe3eab3d393c8490) Merge pull request [#673](https://github-redirect.dependabot.com/rust-random/rand/issues/673) from dhardy/master - [`cf5e07f`](https://github.com/rust-random/rand/commit/cf5e07fe958a95a41233b827329dae2dcd4a2576) Fix rand_xoshiro dependencies - [`3001e91`](https://github.com/rust-random/rand/commit/3001e91bca7858facf0fb8f91275a6ff8264da9f) Merge pull request [#672](https://github-redirect.dependabot.com/rust-random/rand/issues/672) from dhardy/master - [`3b7cf7a`](https://github.com/rust-random/rand/commit/3b7cf7a1e8fb9a3d66c91efccb7d54d88af07fcf) Prepare rand version 0.6.2 release - [`2448457`](https://github.com/rust-random/rand/commit/24484575be378902c2c81395312e67e8f88fcc6e) Add changelog notes for rand_pcg version 0.1.2 release - [`59f0b2f`](https://github.com/rust-random/rand/commit/59f0b2f8e9e37de3765e8e31222ce077d1b6395e) Prepare rand_os version 0.1.0 release; add copyright notices - [`a819aea`](https://github.com/rust-random/rand/commit/a819aea5db3b6be032ee667ac80076688a135c14) Prepare rand_xoshiro version 0.1.0 release; add copyright notices - Additional commits viewable in [compare view](https://github.com/rust-random/rand/compare/0.6.1...0.6.3)

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rukai / PF_Sandbox

Bump rand from 0.6.1 to 0.6.3 #65