Release v4.6.0.
Release v4.6.0.

Includes support for a second parameter to the asset constructor, allowing custom configuration of mincer.

Fixes #264.

codynguyen/connect-assets,blakevanlan/connect-assets,luckycadow/connect-assets,inukshuk/connect-assets,nmalacarne/connect-assets,adunkman/connect-assets,dapriett/connect-assets,codynguyen/connect-assets,adunkman/connect-assets