Feature: Change WordPress translation domain

[JasonTheAdams]

I'm getting ready to use this on the new Validation library, and realized we have a need that I think Strauss would be a great fit for.

In the library we're using the WordPress __() translation function. The trick with that function is that the domain can't be a variable, it has to be a plain string for generating the POT file. That would mean the domain would need to be changed from some placeholder to whatever it ought to be during the build process.

The crew at Modern Tribe recently threw a script together that accomplishes this task. But it feels like something that would be a great fit for Strauss to handle.

Thanks!

[JasonTheAdams]

In the meantime, I ended up including a script with Validation that is run before Strauss which swaps out the domain. Still, this would have to be done with every package, so having this as part of Strauss would be awesome.