docs: update homepage to announce 3.1

    'sdk': {

      'layout':"imgLeft",

      'icon':"sdk-small.png",

      'name':"Android 3.0",

      'name':"Android 3.1",

      'img':"honeycomb-android.png",

      'title':"Android 3.0 is here!",

      'desc': "<p>Android 3.0 is now available for the Android SDK. It offers a redesigned UI and "

+ "all new developer APIs for an optimized experience on tablets and similar devices. "

+ "For more information about what's in Android 3.0, read the "

+ "<a href='{@docRoot}sdk/android-3.0.html'>version notes</a>.</p>"

      'title':"Android 3.1 now available!",

      'desc': "<p>Android 3.1 includes new developer features such as APIs for USB "

+ "accessories, MTP/PTP, and RTP, as well as new input events from mice, trackballs, joysticks, "

+ "and more.</p>"

+ "<p>For more information about all the new APIs in Android 3.1, read the "

+ "<a href='{@docRoot}sdk/android-3.1.html'>version notes</a>.</p>"

/*

+ "<p>If you have an existing SDK, add Android 3.0 as an "

+ "<a href='{@docRoot}sdk/adding-components.html'>SDK "

+ "component</a>. If you're new to Android, install the "

+ "<a href='{@docRoot}sdk/index.html'>SDK starter package</a>."

*/

    },

    'tv': {

               + "for television built on Android. Google "

               + "has partnered with Sony and Logitech to integrate "

               + "this platform into TVs, blu-ray players, and companion "

               + "boxes. An add-on for the Android SDK will be "

               + "available early next year. </p>"

               + "boxes. </p>"

               + "<p><a href='http://www.google.com/tv/'>Learn more about "

               + "Google TV &raquo;</a></p>"

    },