免费用户数增加到5人; OnceIO 网站框架更新；OnceDoc/ OnceOA Bug fix；并添加自动化测试

更新日志

r3659 OnceDoc: Fix reference
r3658 OnceIO: Fix callback execute twice
r3657 OnceIO: Separate onceio/ onceio-redis
r3655 OnceOS: fix system cannot display and language setting
r3654 OnceDoc: Make encoding/ textEncoding configurable
r3653 OnceDoc: 修复上传zip包到linux服务器，自动解压后中文文件名乱码的问题；修复没有自动为解压文件创建全文索引的BUG
r3634 OnceVI: remove duplicate keys
r3633 OnceDoc: 检查所有后端代码语法
r3629 OnceIO: Update model in app
r3627 OnceIO: Using Object.assign in some cases. 
r3626 OnceIO: Using shadow clone in res.render
r3625 OnceIO: app.model 改成Deep clone, res.model 改成 shadow clone
r3624 OnceDoc: Blog fix js error
r3623 OnceIO: 添加datetime log功能;
r3622 Test: 添加搜索doc内容的测试
r3621 Fulltext: 修复doc文档不能提取中文内容的BUG
r3620 Test: Cpmplete all testcase
r3619 Test: Update testcase of license
r3618 Test: Add update license spec
r3617 Test: Add license spec
r3616 Test: Add install/uninstall of app spec
r3615 Test: Add license and module install/uninstall spec
r3614 Test: Update testcase
r3613 Test: Update testcase for NAS.
r3612 Test: Update testcase for NAS.
r3611 OnceDoc: Make system object read-only SERP: 不压缩配置代码 
r3610 OnceIO: Fix callback will execute twice, empty file content
r3608 Build: Fix build errors
r3607 Build: Fix version error
r3606 Build: Upgrade build scripts
r3605 OnceOA: 优化过滤函数加载，当加载失败，如首行为注释时，命令行打印错误提示
r3604 OnceOA: 根据test case改进消息提示
r3603 OnceOA: 修复，当表格子字段与主字段同名时，保存后表格内字段同样被主字段覆盖的BUG OnceDB: 数据保存后，JSON表格字段会变成字符串
r3602 OnceDoc: 根据eslint修复代码建议
r3601 Test: test OnceOA and found 1 potential bug
r3600 Test: init OnceOA
r3599 OnceUI jquery.bootstrap: 显示所有提示框，以防露掉错误信息 OnceDoc: 修复$.mod/serp -> web -> img 路径无法被选中的BUG OnceVI: 优化错误提示
r3598 Test: upload and search for OnceDoc
r3597 OnceDoc: 修复勾选自动解压上传zip文件后，构建全部全文索引目录的BUG
r3596 Test: for OnceDoc
r3595 Test: Update test case of OnceDoc for Upload 
r3594 OnceDoc: Test: Update test case of OnceDoc 
r3593 OnceDoc: 修复登录重定向正确的返回地址
r3592 Test: Update test case of OnceDoc/ waitFor/ OnceDoc/Team and fix bug
r3588 Test: Add test case for OnceDoc
r3587 Test: 完善用户管理功能
r3586 Test: User test case
r3585 Test: Update behavior according to test case
r3584 OnceIO: 修复Session总是存储的BUG
r3583 Test: Update test name
r3582 Test: Fix bug 
r3581 OnceIO: 添加PUT/DELETE方法
r3580 OnceIO: 修复E2E bug
r3579 OnceIO: __updated 不会被序列化
r3578 OnceIO: 优化Session机制，更新req.session的第一层属性，才会触发存放数据库操作
r3577 Test: 重构代码
r3576 Test: Fix bug
r3575 Test: Add start server scripts
r3574 Test: Fix bug for e2e test
r3573 Test: Update test case
r3570 Test: 完善 Test Case: 等待动画结束进行主测试
r3569 Test: Update jest to jasmine
r3568 Test: 完善 Jest 测试, 完善自动化测试代码
r3565 Test: Remove node_modules
r3564 OnceDoc: Add testing frameworks
r3561 OnceDoc: 点击编辑时取消默认最大化
r3560 OnceOA: 免费版本最大用户数升至5人，更新产品说明
r3558 OnceDoc: chooseNewFile添加保存后关闭选项closeOnSave
r3505 OnceDB: 更新SCHEMA布局和优化错误提示