add shorthands to builder

[ianstormtaylor]

this way people don't have to always build up with internal plugins to build the native types that are defined in the spec. makes it trivial to do..

builder.scripts(function (err, build) {
  write('build.js', build.scripts);
});

builder.styles(function (err, build) {
  write('build.css', build.styles);
});

[ianstormtaylor]

also added an all method since that will probably be a pretty common one for simple build steps.

builder.all(__dirname + '/build', function (err, build) {
  write('build.js', build.scripts);
  write('build.css', build.styles);
});

[yields]

i'm +1 but the this inside the shorthand methods is weird IMHO.

[ianstormtaylor]

we could put it inside builder.js if we wanted, but i was thinking it gets kinda verbose and their less core to the logic there. for prior art, protos.js and statics.js are the same idea in component/model

[tj]

proto ftw

[tj]

or do we use that already above somewhere

[ianstormtaylor]

nah we dont i dont think. seems weird though to set the shorthands as the proto?