[API] replacing raise with return
[API] replacing raise with return

In order to address:

https://github.com/botherder/viper/issues/238

But IMO there is a problem with the error status codes, but at least this will fix the API for the moment.
Beercow/viper,S2R2/viper,kevthehermit/viper,MeteorAdminz/viper,postfix/viper-1,jahrome/viper,MeteorAdminz/viper,cwtaylor/viper,Beercow/viper,Beercow/viper,postfix/viper-1,jack51706/viper,jahrome/viper,S2R2/viper,cwtaylor/viper,kevthehermit/viper,jack51706/viper