v0.8.0-prerelease2

Full Changelog: v0.8.0-prerelease1...v0.8.0-prerelease2

feat: https mode for blog server
refactor: move blog-related options to a accordion in workspace settings
refactor: make adminToken usage clearer to fix potential bugs
fix: Error when import/export HTML wiki: The "path" argument must be of type string. Received undefined (b…
feat: menu item to ExportWholeWikiHTML
fix: input-box lose focus after wiki shows dialog (that calls window.alert('...') )
fix: save and restore menubar window position
docs: better button text about save&restart in workspace settings

功夫：博客服务器的https模式
重构：将博客相关的选项移到工作区设置的手风琴上
重构：使adminToken的使用更加清晰，以修复潜在的bug
修复： 在导入/导出HTML wiki时出错： the "path"参数必须是字符串类型。接收未定义（b...
功夫：导出整个WikiHTML的菜单项
修正：输入框在wiki显示对话框后失去焦点（调用window.alert('...')）。
修正：保存和恢复菜单栏窗口的位置
文档：改进工作区设置中关于保存和重启的按钮文本