• Add CocJumpPlaceholder autocmd.
• Add rootPatterns to languageserver config.
• Add setting: coc.preferences.hoverTarget, support use echo.
• Add setting coc.preferences.diagnostic.displayByAle for use ale to display errors.
• Add setting coc.preferences.extensionUpdateCheck for control update check of
  extentions.
• Add coc#config for set configuration in vim.
• Fix rootPath not resolved on initialize.
• Fix possible wrong tabSize by use shiftwidth option.
• Fix trigger of documentColors request.
• Fix vim-node-rpc service not work on windows vim.
• Fix codeLens not works.
• Fix highlight of signatureHelp.
• Fix watchman watching same root multiple times.
• Fix completion throw undefined error.
• Fix open_terminal not works on vim.
• Fix possible connection lost by use notification when possible.
• Fix process not terminated when connection lost.
• Rework diagnostics with task sequence.
• Rework configuration with more tests.