[bug] python codegenerator template was casting all constants to ints.
[airtunes] - use the temp password var when starting the airtunes server for not activating password protection in accident when its disabled via gui
[depends] - add libshairplay
[win32] - bump libshairplay to the same version we use in unified deps
[depends] - remove libshairport as its superseeded by libshairplay now
[airtunes] - make libshairplay the new default airtunes library and allow configure to detect and fallback to libshairport if needed