add options to 'fdroid init': --distinguished-name and --repo-keyalias
add options to 'fdroid init': --distinguished-name and --repo-keyalias

These allow the user to set these config.py options from the command line
when initing a new repo.

f-droid/fdroidserver,f-droid/fdroidserver,matlink/fdroidserver,matlink/fdroidserver,f-droid/fdroid-server,pfalcon/fdroidserver,fdroidtravis/fdroidserver,OneEducation/AppUniverse_Server,fdroidtravis/fdroidserver,fdroidtravis/fdroidserver,f-droid/fdroid-server,matlink/fdroidserver,fdroidtravis/fdroidserver,OneEducation/AppUniverse_Server,f-droid/fdroidserver,pfalcon/fdroidserver,OneEducation/AppUniverse_Server,OneEducation/AppUniverse_Server,fantastico/fdroidserver,matlink/fdroidserver,matlink/fdroidserver,pfalcon/fdroidserver,pfalcon/fdroidserver,f-droid/fdroid-server,fantastico/fdroidserver,OneEducation/AppUniverse_Server,f-droid/fdroid-server,fantastico/fdroidserver,pfalcon/fdroidserver,fantastico/fdroidserver,f-droid/fdroidserver,f-droid/fdroidserver,fantastico/fdroidserver,f-droid/fdroid-server