BaseController
- 支持express和koa的res和req api
- 集成基础模块，保证类似于express的基础功能
api
依赖
- "content-disposition": "^0.5.2",
- "debug": "^2.4.5",
- "encodeurl": "^1.0.1",
- "koa-compress": "^2.0.0",
- "koa-conditional-get": "^2.0.0",
- "koa-etag": "^3.0.0",
- "koa-favicon": "^2.0.0",
- "mime": "^1.3.4",
- "qs": "^6.3.0",
- "range-parser": "^1.2.0",
- "slet-send": "^3.2.0",
- "utils-merge": "^1.0.0",
- "vary": "^1.1.0"