electron v0.30.1

Changelog:

• Add BrowserWindow.setAspectRatio API.
• Add tray.popContextMenu API.
• Add session.setProxy API.
• Add session option for protocol.RequestHttpJob.
• Add getUserAgent method for WebContents and <webview> tag.
• Add noLink option for dialog.showMessageBox.
• Fix a few bugs when intercepting HTTP requests with protocol module.

Windows and Mac

• Add right-clicked event to Tray.

Windows

• Fix resolved callback of Promise doesn't get invoked under some situations.
• Fix app-command event always returns unknown.

Mac

• Make window's bottom corner render more smooth.
• Fix BrowserWindow.setContentSize and use-content-size option not working.
• Fix the filters of file dialogs including other types of files.
• Fix web page not having focus under some circumstances.

Linux

• Fix minimum and maximum size of BrowserWindow not working.
• Fix resizable option of BrowserWindow not working.