fix surrogate pair calculation
fix surrogate pair calculation

achernet/cython,c-blake/cython,scoder/cython,ABcDexter/cython,mcanthony/cython,da-woods/cython,hickford/cython,roxyboy/cython,slonik-az/cython,mcanthony/cython,larsmans/cython,andreasvc/cython,hhsprings/cython,JelleZijlstra/cython,roxyboy/cython,mrGeen/cython,cython/cython,roxyboy/cython,mrGeen/cython,hickford/cython,hpfem/cython,fperez/cython,achernet/cython,encukou/cython,marscher/cython,madjar/cython,achernet/cython,mrGeen/cython,JelleZijlstra/cython,hpfem/cython,c-blake/cython,acrispin/cython,encukou/cython,da-woods/cython,fabianrost84/cython,cython/cython,da-woods/cython,encukou/cython,rguillebert/CythonCTypesBackend,ABcDexter/cython,scoder/cython,ChristopherHogan/cython,ABcDexter/cython,hpfem/cython,dahebolangkuan/cython,mrGeen/cython,JelleZijlstra/cython,fperez/cython,hhsprings/cython,achernet/cython,mcanthony/cython,c-blake/cython,hhsprings/cython,encukou/cython,roxyboy/cython,cython/cython,marscher/cython,fabianrost84/cython,fabianrost84/cython,encukou/cython,slonik-az/cython,hickford/cython,rguillebert/CythonCTypesBackend,mcanthony/cython,acrispin/cython,achernet/cython,hickford/cython,hpfem/cython,fabianrost84/cython,larsmans/cython,dahebolangkuan/cython,mrGeen/cython,mcanthony/cython,madjar/cython,dahebolangkuan/cython,andreasvc/cython,fperez/cython,JelleZijlstra/cython,larsmans/cython,dahebolangkuan/cython,hhsprings/cython,slonik-az/cython,JelleZijlstra/cython,acrispin/cython,dahebolangkuan/cython,hickford/cython,slonik-az/cython,larsmans/cython,rguillebert/CythonCTypesBackend,ABcDexter/cython,marscher/cython,fabianrost84/cython,marscher/cython,rguillebert/CythonCTypesBackend,c-blake/cython,madjar/cython,cython/cython,c-blake/cython,scoder/cython,hhsprings/cython,fperez/cython,marscher/cython,madjar/cython,fperez/cython,madjar/cython,hpfem/cython,ChristopherHogan/cython,ChristopherHogan/cython,andreasvc/cython,andreasvc/cython,ABcDexter/cython,acrispin/cython,acrispin/cython,slonik-az/cython,andreasvc/cython,scoder/cython,roxyboy/cython,larsmans/cython,da-woods/cython