Ember.js: [meta] 改进问题分类工作流程以节省核心团队带宽

根据有关 Slack 的讨论，在#-learning频道上：

acorncom: seems like we could use more folks triaging issues for ember.js (preferably using tags, and potentially given ability to close stale issues) without full write-access to emberjs/ember.js
acorncom: is there some bot (like homu) that allows for that?
acorncom: would love to alleviate the triaging load for core folks without giving me (or others) full-on write access.  not sure I need that responsibility just now ;-)

rwjblue: I'm not opposed to an issue triage team with access/permissions to close issues

看起来我们有几个项目需要解决：

• [ ] 核心团队批准（除了@rwjblue）
• [ ] 寻找/构建一个能够完成我们所追求的机器人
• [] 在这个 repo 上设置机器人