Adding TabAppMenu; a simple Cascades sample app to show the proper usage of the following components: TabbedPane, Tab, ApplicationMenu, Sheet, NavigationPane
Minor changes to the URL link and text description within InfoPage and SettingsPage respectively
Minor changes in README.md
Merge pull request #94 from surashid/master

Adding "TabAppMenu": Simple Cascades app to show correct usage of TabbedPane, Tab, ApplicationMenu, Sheet, NavigationPane