add conf.remove() and conf.add()?

[eivindfjeldstad]

Having a hook to compile templates while using the new plugin API seems to be very difficult ATM. Would be useful to have some way to add/remove scripts before they touch plugins like commonjs. Maybe something like:

build.each('templates', function (file, conf) {
  conf.remove('templates', file);
  file.contents = jade(file.contents);
  file.filename = 'template.js';
  conf.add('scripts', file);
});

Would you accept a PR?

[eivindfjeldstad]

I could just use push() and splice() but then the behavior of build.each() needs to change.

[ianstormtaylor]

was debating a very similar thing in a similar project. the other solution would be to eliminate the Build object with the each helpers and let people act directly on the {} itself so they can delete obj.key and obj[key] = ...

couldn't figure out which one was best. one is nicer for plugin writing, the other is most flexible

[bergie]

Also related: #125