RubyMotion Rakefile build locations

Rakefile

puts App.config.build_dir                                     #=> ./build
puts File.join(App.config.versionized_build_dir('MacOSX'))    #=> ./build/MacOSX-10.9-Development
puts App.config.app_bundle('MacOSX')                          #=> ./build/MacOSX-10.9-Development/MyApp.app/Contents
puts File.dirname(App.config.app_bundle_executable('MacOSX')) #=> ./build/MacOSX-10.9-Development/MyApp.app/Contents/MacOS
puts App.config.app_bundle_executable('MacOSX')               #=> ./build/MacOSX-10.9-Development/MyApp.app/Contents/MacOS/MyApp