Bump rand from 0.4.2 to 0.5.0

[dependabot-preview]

Bumps rand from 0.4.2 to 0.5.0.

Changelog

Sourced from rand's changelog.

[0.5.0] - 2018-05-21

Crate features and organisation

• Minimum Rust version update: 1.22.0. (#239)
• Create a separate rand_core crate. (#288)
• Deprecate rand_derive. (#256)
• Add prelude (and module reorganisation). (#435)
• Add log feature. Logging is now available in JitterRng, OsRng, EntropyRng and ReseedingRng. (#246)
• Add serde1 feature for some PRNGs. (#189)
• stdweb feature for OsRng support on WASM via stdweb. (#272, #336)

Rng trait

• Split Rng in RngCore and Rng extension trait.
  next_u32, next_u64 and fill_bytes are now part of RngCore. (#265)
• Add Rng::sample. (#256)
• Deprecate Rng::gen_weighted_bool. (#308)
• Add Rng::gen_bool. (#308)
• Remove Rng::next_f32 and Rng::next_f64. (#273)
• Add optimized Rng::fill and Rng::try_fill methods. (#247)
• Deprecate Rng::gen_iter. (#286)
• Deprecate Rng::gen_ascii_chars. (#279)

rand_core crate

• rand now depends on new rand_core crate (#288)
• RngCore and SeedableRng are now part of rand_core. (#288)
• Add modules to help implementing RNGs impl and le. (#209, #228)
• Add Error and ErrorKind. (#225)
• Add CryptoRng marker trait. (#273)
• Add BlockRngCore trait. (#281)
• Add BlockRng and BlockRng64 wrappers to help implementations. (#281, #325)
• Revise the SeedableRng trait. (#233)
• Remove default implementations for RngCore::next_u64 and RngCore::fill_bytes. (#288)
• Add RngCore::try_fill_bytes. (#225)

Other traits and types

• Add FromEntropy trait. (#233, #375)
• Add SmallRng wrapper. (#296)
• Rewrite ReseedingRng to only work with BlockRngCore (substantial performance improvement). (#281)
• Deprecate weak_rng. Use SmallRng instead. (#296)
• Deprecate AsciiGenerator. (#279)

Random number generators

• Switch StdRng and thread_rng to HC-128. (#277)
• StdRng must now be created with from_entropy instead of new
• Change thread_rng reseeding threshold to 32 MiB. (#277)
• PRNGs no longer implement Copy. (#209)
• Debug implementations no longer show internals. (#209)
• Implement Clone for ReseedingRng, JitterRng, OsRng`. (#383, #384)
• Implement serialization for XorShiftRng, IsaacRng and Isaac64Rng under the serde1 feature. (#189)
• Implement BlockRngCore for ChaChaCore and Hc128Core. (#281)

... (truncated)

Commits

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[dependabot-preview]

Superseded by #7.