Merge pull request #73 from tagawa/browser-updates

Updated Chrome version
Merge pull request #74 from tagawa/browser-updates

Updated Chrome version
Merge pull request #75 from tagawa/browser-updates

Updated Firefox and Opera versions
Merge pull request #76 from tagawa/browser-updates

Updated Firefox version
Merge pull request #77 from tagawa/browser-updates

Updated browser versions for Chrome and Opera Mobile
Use new Twitter API link to developer profile pics
Merge branch 'master' into browser-updates