Okay. @pfaffman merged my first two pull requests to the plugin, and the changes made are:
-
Addition of a field in siteSettings where the admin can enter the canned responses, in the format
name1:message1|name2:message2 -
Changes to the controller - now, it pulls these responses from siteSettings. Deleted the hard-coded responses.
I think it can be used as a rough, temporary solution. Members of the community, please try it out and tell me if there are any bugs / anything that can be improved, for now. 
