am a8bbfca3: Change "M Preview" tab to "Preview", change "monetize" subtab to "Earn". Highlight preview subtab on preview pages. Change "About" link to latest version of Android.

* commit 'a8bbfca3d0ba7da40f9348eeb38badda575fe411':
  Change "M Preview" tab to "Preview", change "monetize" subtab to "Earn". Highlight preview subtab on preview pages. Change "About" link to latest version of Android.