Permit {path} and {query} in asset name

[codechaotic]

This is my proposed solution to #8

It simply replaces

var newFile = this.asset.replace(/\{file\}/g, file);

with a more thorough parsing of the file (treating it as a url to handle the query)

var parse = url.parse(file);
var sub = {
  file: file,
  path: parse.pathname,
  query: parse.query
};
var newFile = this.asset.replace(/\{(file|path|query)\}/g, function(p0,p1) {
  return sub[p1];
});

[kis]

Could you merge this, guys?

[sokra]

Thanks

[sokra]

I'll propably change it from {file} to [file] etc. to be more consitant with other webpack stuff...