merge 0.22.x branch into master
merge 0.22.x branch into master

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