renamed constant define to LTST
changed constant name and value to LTST
changed table view bar button with embedded button to plain bar button to resolve resizing bug on iOS 6
changed behavior to allow table to be accessible on iPhone in portrait mode
customized caption view, navbar and toolbar icon visibility to become hidden on iPhone in portrait mode when the width of the image view is less than 100
custom caption view that becomes hidden when the image view is too narrow in width (100 pixels or less)
improved some toolbar icons and launch images