add alternative pylong_join() implementation (slower than what's there), purely for documentation
add alternative pylong_join() implementation (slower than what's there), purely for documentation

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