Better clap attributes

Dependencies

• [2] I52XSRUH Massive cleanup, and simplification
• [3] UTDZKZGP infer subcommands
• [4] SXEYMYF7 Fixing the bad changes in history (unfortunately, by rebooting).
• [5] Q4SVMHAE Removing --channel from the changes command
• [6] L4JXJHWX pijul/*: reorganize imports and remove extern crate

Change contents

• replacement in pijul/src/main.rs at line 10
  [4.603]→[4.603:664](∅→∅)
  − use clap::{crate_authors, crate_version, AppSettings, Clap};
  [4.603]

  [4.664]
  + use clap::{AppSettings, Clap};
• replacement in pijul/src/main.rs at line 22
  [3.8]→[3.8:154](∅→∅)
  − version = crate_version!(),

  − author = crate_authors!(),

  − setting(AppSettings::ColoredHelp),

  − setting(AppSettings::InferSubcommands),
  [3.8]

  [3.154]
  + version,

  + author,

  + global_setting(AppSettings::ColoredHelp),

  + setting(AppSettings::InferSubcommands)
• replacement in pijul/src/commands/channel.rs at line 5
  [2.6264]→[4.0:31](∅→∅),[4.187014]→[4.0:31](∅→∅)
  − use clap::{AppSettings, Clap};
  [2.6264]

  [2.6265]
  + use clap::Clap;
• edit in pijul/src/commands/channel.rs at line 9
  [4.187037]→[4.32:75](∅→∅)
  − #[clap(setting(AppSettings::ColoredHelp))]