XMPPFramework / iOS / libidn / -all_load failure

As I integrated the XMPPFramework it requires the libidn library for a couple of methods it uses.  The latest version of libidn that the XMPPFramework included as of this writing is 1.15.

Unfortunately, this version seems incompatible with the “Other Linker Flag” -all_load that other libraries seem to want to use.  The all_load linker flag [...]