Release 3.3.4

EN:

• [FEATURE] Add %c log format to support custom log style, see Tutorial for more details.
• [FEATURE] Add VConsole.VConsoleLogPlugin (VConsole.VConsole* plugins etc.) to VConsole class.
• [IMPROVE] Display vConsole on window DOMContentLoaded instead of window load.
• [FIX] Fix remove cookie fail when it is set path=/ or top domain. (#264 by @qianxinfeng)
• [FIX] Fix a few minor issues. (#267 by @Molunerfinn, #272 by @domom)

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CN:

• 【特性】增加 %c 以支持自定义日志样式，详情见 使用教程。
• 【特性】增加 VConsole.VConsoleLogPlugin 等 VConsole.VConsole* 内置插件在 VConsole class 上的挂载。
• 【优化】在 window DOMContentLoaded 而不是 window load 时显示 vConsole。
• 【修复】修复当 cookie path=/ 或设置了 domain 时删除失败的问题。(#264 by @qianxinfeng)
• 【修复】修复若干小问题。(#267 by @Molunerfinn, #272 by @domom)