[ci skip] update upgrade documentation for 0.3.18
[ci skip] update upgrade documentation for 0.3.18

henrik/dokku,omeid/dokku,claytonbrown/dokku,tilgovi/dokku,emdantrim/dokku,Cactusbone/dokku,cjblomqvist/dokku,arthurschreiber/dokku,sebastianscatularo/dokku,henrik/dokku,beedesk/dokku,suxor42/dokku,jamesmarva/dokku,jimjag/dokku,mouserage/dokku,mmerickel/dokku,vkurup/dokku,beedesk/dokku,klodoo/dokku,beedesk/dokku,netbrick/dokku,u2mejc/dokku,crisward/dokku,mmerickel/dokku,eljojo/dokku,beedesk/dokku,ddreaml/dokku,basicer/dokku,alexquick/dokku,bkniffler/dokku,stepri/dokku,u2mejc/dokku,vlipco/dokku,alexquick/dokku,eljojo/dokku,tilgovi/dokku,TribeMedia/dokku,callahad/dokku,kennetham/dokku,mrluc/dokku,cjblomqvist/dokku,arthurschreiber/dokku,callahad/dokku,Git-Host/dokku,henrik/dokku,dokku/dokku,matto1990/dokku,basicer/dokku,mouserage/dokku,henrik/dokku,arsthanea/dokku,amaltson/dokku,callahad/dokku,jamesmarva/dokku,Fab-IT-ApS/dokku,u2mejc/dokku,codeconfab/dokku,sebastianscatularo/dokku,sseemayer/dokku,alexquick/dokku,gianpaj/dokku,pmvieira/dokku,econya/dokku,progrium/dokku,fruitl00p/dokku,vijayviji/dokku,econya/dokku,progrium/dokku,Evlos/dokku,sebastianscatularo/dokku,cjblomqvist/dokku,jimjag/dokku,mouserage/dokku,progrium/dokku,klodoo/dokku,pmvieira/dokku,bobvanderlinden/dokku,fruitl00p/dokku,kennetham/dokku,fmoliveira/dokku,pmvieira/dokku,sebastianscatularo/dokku,emdantrim/dokku,arthurschreiber/dokku,arsthanea/dokku,sebastianscatularo/dokku,akatrevorjay/dokku,u2mejc/dokku,vkurup/dokku,bkniffler/dokku,omeid/dokku,mmerickel/dokku,jazzzz/dokku,henrik/dokku,bobvanderlinden/dokku,mrluc/dokku,Evlos/dokku,bkniffler/dokku,vkurup/dokku,Fab-IT-ApS/dokku,AnselZhangGit/dokku,matto1990/dokku,fruitl00p/dokku,alessio/dokku,TribeMedia/dokku,Git-Host/dokku,claytonbrown/dokku,mouserage/dokku,fruitl00p/dokku,jamesmarva/dokku,fmoliveira/dokku,vlipco/dokku,jazzzz/dokku,omeid/dokku,Cactusbone/dokku,Cactusbone/dokku,dokku/dokku,Evlos/dokku,stepri/dokku,barseghyanartur/dokku,arsthanea/dokku,jazzzz/dokku,eljojo/dokku,alessio/dokku,klodoo/dokku,beedesk/dokku,suxor42/dokku,progrium/dokku,arthurschreiber/dokku,jazzzz/dokku,biddyweb/dokku,davidsiefert/dokku,sseemayer/dokku,Evlos/dokku,cjblomqvist/dokku,tilgovi/dokku,codeconfab/dokku,3onyc/dokku,TribeMedia/dokku,crisward/dokku,TribeMedia/dokku,cjblomqvist/dokku,johnfraney/dokku,elia/dokku,Cactusbone/dokku,tilgovi/dokku,mmerickel/dokku,sseemayer/dokku,TribeMedia/dokku,gianpaj/dokku,vijayviji/dokku,Git-Host/dokku,bkniffler/dokku,ddreaml/dokku,experimental-platform/dokku,mmerickel/dokku,econya/dokku,davidsiefert/dokku,codeconfab/dokku,u2mejc/dokku,stepri/dokku,emdantrim/dokku,biddyweb/dokku,barseghyanartur/dokku,emdantrim/dokku,bkniffler/dokku,claytonbrown/dokku,codeconfab/dokku,AnselZhangGit/dokku,stepri/dokku,henrik/dokku,expa/dokku,jimjag/dokku,mrluc/dokku,experimental-platform/dokku,davidsiefert/dokku,econya/dokku,davidsiefert/dokku,mrluc/dokku,ertrzyiks/dokku,dokku/dokku,Fab-IT-ApS/dokku,experimental-platform/dokku,biddyweb/dokku,mmerickel/dokku,suxor42/dokku,ertrzyiks/dokku,progrium/dokku,Fab-IT-ApS/dokku,elia/dokku,eljojo/dokku,akatrevorjay/dokku,alessio/dokku,dokku/dokku,vkurup/dokku,vijayviji/dokku,crisward/dokku,alessio/dokku,vijayviji/dokku,beedesk/dokku,gianpaj/dokku,Git-Host/dokku,jimeh/dokku,fmoliveira/dokku,amaltson/dokku,stepri/dokku,beedesk/dokku,omeid/dokku,claytonbrown/dokku,AnselZhangGit/dokku,johnfraney/dokku,arsthanea/dokku,stepri/dokku,3onyc/dokku,akatrevorjay/dokku,alexquick/dokku,barseghyanartur/dokku,fmoliveira/dokku,u2mejc/dokku,pmvieira/dokku,akatrevorjay/dokku,Cactusbone/dokku,cjblomqvist/dokku,AnselZhangGit/dokku,jimeh/dokku,ertrzyiks/dokku,basicer/dokku,3onyc/dokku,omeid/dokku,suxor42/dokku,jamesmarva/dokku,pmvieira/dokku,kennetham/dokku,AnselZhangGit/dokku,vijayviji/dokku,johnfraney/dokku,elia/dokku,biddyweb/dokku,experimental-platform/dokku,kennetham/dokku,vlipco/dokku,mouserage/dokku,fmoliveira/dokku,ddreaml/dokku,Git-Host/dokku,AnselZhangGit/dokku,dokku/dokku,jamesmarva/dokku,amaltson/dokku,ddreaml/dokku,netbrick/dokku,dokku/dokku,callahad/dokku,fruitl00p/dokku,jimeh/dokku,crisward/dokku,gianpaj/dokku,gianpaj/dokku,barseghyanartur/dokku,suxor42/dokku,bobvanderlinden/dokku,ertrzyiks/dokku,3onyc/dokku,tilgovi/dokku,3onyc/dokku,gianpaj/dokku,jimeh/dokku,alexquick/dokku,mrluc/dokku,johnfraney/dokku,davidsiefert/dokku,jimjag/dokku,crisward/dokku,elia/dokku,arthurschreiber/dokku,matto1990/dokku,amaltson/dokku,vijayviji/dokku,jamesmarva/dokku,sseemayer/dokku,ertrzyiks/dokku,Git-Host/dokku,vlipco/dokku,jimjag/dokku,vkurup/dokku,alessio/dokku,codeconfab/dokku,mouserage/dokku,matto1990/dokku,fmoliveira/dokku,bobvanderlinden/dokku,omeid/dokku,expa/dokku,Evlos/dokku,ertrzyiks/dokku,netbrick/dokku,rocLv/dokku,jimeh/dokku,eljojo/dokku,kennetham/dokku,3onyc/dokku,davidsiefert/dokku,suxor42/dokku,biddyweb/dokku,eljojo/dokku,claytonbrown/dokku,vkurup/dokku,Evlos/dokku,ddreaml/dokku,Git-Host/dokku,3onyc/dokku,u2mejc/dokku,Cactusbone/dokku,pmvieira/dokku,rocLv/dokku,claytonbrown/dokku,biddyweb/dokku,barseghyanartur/dokku,akatrevorjay/dokku,johnfraney/dokku,bkniffler/dokku,fruitl00p/dokku,callahad/dokku,Git-Host/dokku,rocLv/dokku,beedesk/dokku,elia/dokku,expa/dokku,callahad/dokku,sseemayer/dokku,jimeh/dokku,bobvanderlinden/dokku,vijayviji/dokku,barseghyanartur/dokku,klodoo/dokku,netbrick/dokku,mouserage/dokku,davidsiefert/dokku,jimjag/dokku,vlipco/dokku,alessio/dokku,kennetham/dokku,basicer/dokku,dokku/dokku,progrium/dokku,matto1990/dokku,expa/dokku,jimjag/dokku,emdantrim/dokku,basicer/dokku,fruitl00p/dokku,netbrick/dokku,fruitl00p/dokku,claytonbrown/dokku,expa/dokku,arthurschreiber/dokku,biddyweb/dokku,jazzzz/dokku,AnselZhangGit/dokku,amaltson/dokku,rocLv/dokku,johnfraney/dokku,TribeMedia/dokku,econya/dokku,emdantrim/dokku,omeid/dokku,rocLv/dokku,gianpaj/dokku,pmvieira/dokku,matto1990/dokku,bkniffler/dokku,davidsiefert/dokku,claytonbrown/dokku,bobvanderlinden/dokku,stepri/dokku,matto1990/dokku,crisward/dokku,arthurschreiber/dokku,sebastianscatularo/dokku,kennetham/dokku,suxor42/dokku,Cactusbone/dokku,barseghyanartur/dokku,sseemayer/dokku,johnfraney/dokku,experimental-platform/dokku,emdantrim/dokku,johnfraney/dokku,henrik/dokku,expa/dokku,mrluc/dokku,sebastianscatularo/dokku,expa/dokku,vkurup/dokku,econya/dokku,emdantrim/dokku,Fab-IT-ApS/dokku,akatrevorjay/dokku,netbrick/dokku,mmerickel/dokku,basicer/dokku,alexquick/dokku,netbrick/dokku,Fab-IT-ApS/dokku,arsthanea/dokku,amaltson/dokku,mouserage/dokku,TribeMedia/dokku,3onyc/dokku,elia/dokku,amaltson/dokku,paralin/crew,gianpaj/dokku,jazzzz/dokku,elia/dokku,ddreaml/dokku,klodoo/dokku,jazzzz/dokku,barseghyanartur/dokku,jimeh/dokku,TribeMedia/dokku,Fab-IT-ApS/dokku,experimental-platform/dokku,arthurschreiber/dokku,vijayviji/dokku,cjblomqvist/dokku,basicer/dokku,basicer/dokku,vlipco/dokku,AnselZhangGit/dokku,akatrevorjay/dokku,rocLv/dokku,expa/dokku,bobvanderlinden/dokku,Cactusbone/dokku,ertrzyiks/dokku,alessio/dokku,arsthanea/dokku,vlipco/dokku,arsthanea/dokku,Evlos/dokku,fmoliveira/dokku,mmerickel/dokku,rocLv/dokku,pmvieira/dokku,sseemayer/dokku,jimeh/dokku,ddreaml/dokku,tilgovi/dokku,experimental-platform/dokku,vkurup/dokku,ertrzyiks/dokku,amaltson/dokku,dokku/dokku,alexquick/dokku,alessio/dokku,jamesmarva/dokku,henrik/dokku,biddyweb/dokku,Fab-IT-ApS/dokku,klodoo/dokku,crisward/dokku,elia/dokku,mrluc/dokku,kennetham/dokku,paralin/crew,jazzzz/dokku,jamesmarva/dokku,mrluc/dokku,experimental-platform/dokku,sseemayer/dokku,callahad/dokku,codeconfab/dokku,tilgovi/dokku,fmoliveira/dokku,matto1990/dokku,jimjag/dokku,econya/dokku,progrium/dokku,suxor42/dokku,bobvanderlinden/dokku,tilgovi/dokku,eljojo/dokku,klodoo/dokku,econya/dokku,klodoo/dokku,akatrevorjay/dokku,alexquick/dokku,netbrick/dokku,bkniffler/dokku,vlipco/dokku,cjblomqvist/dokku,rocLv/dokku,crisward/dokku,stepri/dokku,arsthanea/dokku,eljojo/dokku,codeconfab/dokku,callahad/dokku,codeconfab/dokku,ddreaml/dokku,omeid/dokku,progrium/dokku,Evlos/dokku,u2mejc/dokku,sebastianscatularo/dokku