typo in roundcube download URL
typo in roundcube download URL

see https://github.com/mail-in-a-box/mailinabox/commit/8e0967dd8e2ecce6a1092deaca7241a6d927ae1e#commitcomment-7940724

choltha/mailinabox,jprice/mailinabox,d5ve/mailinabox,choltha/mailinabox,pierreozoux/mailinabox,brocktice/mailinabox,pichak/mailinabox,Toilal/mailinabox,pichak/mailinabox,jjz/mailinabox,jprice/mailinabox,pierreozoux/mailinabox,hnk/mailinabox,brocktice/mailinabox,nstanke/mailinabox,b-deng/mailinabox,d5ve/mailinabox,jjz/mailinabox,mail-in-a-box/mailinabox,jmedding/mailinabox,d5ve/mailinabox,m4rcs/mailinabox,d5ve/mailinabox,ianberinger/mailinabox,Neopallium/mailinabox,brocktice/mailinabox,jprice/mailinabox,PortableTech/mailinabox,pichak/mailinabox,choltha/mailinabox,jjz/mailinabox,Neopallium/mailinabox,mail-in-a-box/mailinabox,mboersma/mailinabox,mboersma/mailinabox,m4rcs/mailinabox,pierreozoux/mailinabox,jprice/mailinabox,pierreozoux/mailinabox,m4rcs/mailinabox,ianberinger/mailinabox,nstanke/mailinabox,m4rcs/mailinabox,ianberinger/mailinabox,Neopallium/mailinabox,nstanke/mailinabox,PortableTech/mailinabox,pichak/mailinabox,nstanke/mailinabox,nstanke/mailinabox,mboersma/mailinabox,brocktice/mailinabox,mail-in-a-box/mailinabox,jmedding/mailinabox,PortableTech/mailinabox,jjz/mailinabox,Neopallium/mailinabox,hnk/mailinabox,ianberinger/mailinabox,choltha/mailinabox,m4rcs/mailinabox,b-deng/mailinabox,mail-in-a-box/mailinabox,jmedding/mailinabox,b-deng/mailinabox,jmedding/mailinabox,mboersma/mailinabox,choltha/mailinabox,b-deng/mailinabox,b-deng/mailinabox,jjz/mailinabox,jmedding/mailinabox,Toilal/mailinabox,brocktice/mailinabox,ianberinger/mailinabox,hnk/mailinabox,pierreozoux/mailinabox,hnk/mailinabox,mboersma/mailinabox,jprice/mailinabox,Toilal/mailinabox,Toilal/mailinabox,Neopallium/mailinabox,PortableTech/mailinabox,d5ve/mailinabox,PortableTech/mailinabox