Adds an expand option

[micahblu]

[micahblu]

This will allow wildcard src paths to be fully created in the destination path. I.e given a wildcard matched src path of src/somedir/index.html and a dest of dist/ the saved path will be dist/somedir/index.html which could save overwrites of same named files existing in different directories, index.html being a prime example. It also allows the directory structure to be respected, as the author may intend that.