Add an option for verbose output (similar to component build -v)

[andyburke]

Example:

        component_build: {
            app: {
                base: 'client/',
                output: 'client/build/',
                styles: true,
                scripts: true,
                sourceUrls: true,
                verbose: true
            }

Will produce output like:

Running "component_build:app" (component_build) task
duration: 57ms
write: client/build/app.css (12kb)
write: client/build/app.js (214kb)

Added because I like to be able to keep an eye on the size of my app as I integrate components.

[kewah]

Thanks !

(@anthonyshort could you publish the new version ?)

[anthonyshort]

This is awesome! 0.2.8 is published