electron v0.36.1

Changelog:

• Add session.webRequest API.
• Add A5 to webContents.printToPDF's pageSize.
• crashReporter.start now requires passing submitURL and companyName.
• Make window.opener a BrowserWindowProxy.
• Don't pump message loop when sending synchronous message in renderer process.
• Fix crash in V8 when doing garbage collection.
• Fix crash when garbage collecting Buffers.
• Fix crash when passing empty path to app.addRecentDocument.
• Fix crash when changing page's location while using service worker.
• Fix x and y options not working in BrowserWindow.capturePage.

OS X

• Remove usages of private xpc_ APIs in MAS build.
• Fix shell.openExternal not able to open URLs with unescaped characters.