tower-lsp 0.4.1

Changed

• Update jsonrpc-core crate from 14.0 to 14.0.5.
• Update jsonrpc-derive crate from 14.0 to 14.0.5.
• Update log crate from 0.4.7 to 0.4.8.
• Update serde crate from 1.0.99 to 1.0.103.
• Update tokio-executor crate from 0.1.8 to 0.1.9.
• Update env_logger crate from 0.7.0 to 0.7.1.

Fixed

• Correctly handle LSP requests containing incomplete UTF-8 (PR #66).