0.4.0

• Removed deprecated js-import task
• Added packaging-ns which provides download-task to be used when creating
  new cljsjs libraries.

0.3.1

• Main namespace is now cljsjs.boot-cljsjs
• Removed :package flag
  • It's responsibility of other tasks to add files to resource set if needed.
  • E.g. boot-cljs should add .inc.js files to resource set when doing :optimizations :none build.