Change default language checker

[TanTan-TT]

Feature request

Hi, I want to use apidoc to generate api for my project, which is based on playframework ( scala's web framework). According to its spec, we should write external APIs in a file named route, which is non-file-extension file. But its grammar for comment is not java-like. It can only use one-line comment by #, such as
#this is comment
So I cannot use apidoc for that, I think maybe we can change default language checker, maybe I can change to use Elixir-style comment for apidoc, such as

# {
# this is comment
# }

Thank you

[NicolasCARPi]

I have transferred your issue into apidoc-core, as this is what contains the parser.

[TanTan-TT]

I have transferred your issue into apidoc-core, as this is what contains the parser.

Thank you. I have a suggestion for fixing this. Maybe we can modify following code

app.languages = _.defaults({}, options.languages, app.languages);

https://github.com/apidoc/apidoc-core/blob/master/lib/index.js#L293

to

app.languages = _.defaults({}, app.languages, options.languages);

In this case, we can override default config

Another fixing solution is adding an option for CLI tool to change default language checker.
If you need I open a PR, tell me and I will do it.