bots: Allow optional config files for bots.
bots: Allow optional config files for bots.

showell/zulip,hackerkid/zulip,tommyip/zulip,dhcrzf/zulip,showell/zulip,andersk/zulip,Galexrt/zulip,zulip/zulip,rht/zulip,eeshangarg/zulip,rishig/zulip,showell/zulip,rht/zulip,andersk/zulip,andersk/zulip,shubhamdhama/zulip,jrowan/zulip,verma-varsha/zulip,tommyip/zulip,shubhamdhama/zulip,jrowan/zulip,kou/zulip,synicalsyntax/zulip,rht/zulip,rishig/zulip,Galexrt/zulip,rht/zulip,jackrzhang/zulip,zulip/zulip,Galexrt/zulip,jackrzhang/zulip,amanharitsh123/zulip,tommyip/zulip,timabbott/zulip,tommyip/zulip,showell/zulip,dhcrzf/zulip,mahim97/zulip,amanharitsh123/zulip,synicalsyntax/zulip,brainwane/zulip,dhcrzf/zulip,eeshangarg/zulip,shubhamdhama/zulip,synicalsyntax/zulip,timabbott/zulip,punchagan/zulip,dhcrzf/zulip,rht/zulip,dhcrzf/zulip,verma-varsha/zulip,mahim97/zulip,rht/zulip,zulip/zulip,jackrzhang/zulip,vaidap/zulip,brockwhittaker/zulip,hackerkid/zulip,vabs22/zulip,jackrzhang/zulip,kou/zulip,brainwane/zulip,vabs22/zulip,kou/zulip,andersk/zulip,hackerkid/zulip,zulip/zulip,punchagan/zulip,punchagan/zulip,kou/zulip,timabbott/zulip,punchagan/zulip,mahim97/zulip,timabbott/zulip,tommyip/zulip,eeshangarg/zulip,hackerkid/zulip,vaidap/zulip,brainwane/zulip,synicalsyntax/zulip,timabbott/zulip,Galexrt/zulip,jackrzhang/zulip,vaidap/zulip,zulip/zulip,eeshangarg/zulip,vabs22/zulip,dhcrzf/zulip,vabs22/zulip,brockwhittaker/zulip,jrowan/zulip,synicalsyntax/zulip,brainwane/zulip,zulip/zulip,rishig/zulip,amanharitsh123/zulip,rishig/zulip,kou/zulip,synicalsyntax/zulip,vaidap/zulip,brainwane/zulip,Galexrt/zulip,jackrzhang/zulip,andersk/zulip,jrowan/zulip,vaidap/zulip,hackerkid/zulip,amanharitsh123/zulip,andersk/zulip,brockwhittaker/zulip,synicalsyntax/zulip,andersk/zulip,brockwhittaker/zulip,eeshangarg/zulip,amanharitsh123/zulip,brockwhittaker/zulip,showell/zulip,mahim97/zulip,mahim97/zulip,Galexrt/zulip,shubhamdhama/zulip,vabs22/zulip,rishig/zulip,verma-varsha/zulip,rht/zulip,punchagan/zulip,verma-varsha/zulip,zulip/zulip,eeshangarg/zulip,tommyip/zulip,eeshangarg/zulip,timabbott/zulip,brockwhittaker/zulip,kou/zulip,rishig/zulip,mahim97/zulip,amanharitsh123/zulip,verma-varsha/zulip,vaidap/zulip,brainwane/zulip,shubhamdhama/zulip,rishig/zulip,shubhamdhama/zulip,brainwane/zulip,timabbott/zulip,kou/zulip,jrowan/zulip,vabs22/zulip,punchagan/zulip,jackrzhang/zulip,tommyip/zulip,showell/zulip,shubhamdhama/zulip,punchagan/zulip,hackerkid/zulip,hackerkid/zulip,Galexrt/zulip,dhcrzf/zulip,verma-varsha/zulip,showell/zulip,jrowan/zulip