{
  "name": "holderjs",
  "main": "holder.js"
}

{
  "name": "holderjs",
  "main": "holder.js",
  "license": "MIT"
}

Fix missing license for Bower
Fix missing license for Bower

I'm not sure I'm supposed to propose such a patch, even if minor change, 
from a licensing point of view, this is not minor at all.