Turn pattern and replace string into an object

[F21]

I want to use gulp.spritesmith with other gulp-* plugins.

The name is unfortunate, so the default removal of gulp- will not work.

How about turning pattern and the replacement into an object?

var patterns = {};
patterns['gulp-*'] = 'gulp-';
patterns['gulp.*'] = 'gulp.';

And maybe a convenience version if our replacement string is the same as the pattern

var patterns = ['gulp-*', 'gulp.*'];
//gulp-load-plugins just keep the parts that matches the `*`.

[jackfranklin]

Once #38 is merged this should deal with that.

[jackfranklin]

0.7.0 has been published which supports loading gulp.*