anchor.diff:  |Description |Returns a list of all packages associated with a
   particular filter.
   
  -|URL |/api/v1/packageFilters/packagesFor/:filter
  +|URL |/api/v1/packageFilters?filter=:filter
   
   |URL Parameters a|
   * *:filter* — A filter name.
   
   |Success Response a|
  -*Code:* 200
  -
  -*Content:*
  -
  -[source,json]
  -----
  -[
  -  [
  -    "myPackage",
  -    "1.2.3"
  -  ],
  -  [
  -    "myPackage2",
  -    "2.3.4"
  -  ]
  +A list of packages and their information.
  +
  +*Code:* 200
  +
  +*Content:*
  +
  +[source,json]
  +----
  +[
  +  {
  +    "vendor": "AcmeSoftware",
  +    "description": "",
  +    "id": {
  +      "version": "1.2.3",
  +      "name": "myPackage"
  +    }
  +  },
  +  {
  +    "vendor": "AcmeSoftware",
  +    "description": "",
  +    "id": {
  +      "version": "2.3.4",
  +      "name": "myPackage2"
  +    }
  +  }
   ]
   ----
   
  
positive.code: ----
  |=======================================================================
  
  === GET /packageFilters/filtersFor/:name/:version
  
  [width="100%",cols="18%,82%",]
  |=======================================================================
  
negative.code: |Description |Returns a list of all filters associated with a particular
  package.
  
  |URL |/api/v1/packageFilters?package=:name[-]:version
  
  |URL Parameters a|
  * *:name* — A package name.
  * *:version* — A package version, in _x.y.z_ format. __x__, __y__, and __z__ must all exist, and contain only digits.
  
  |Success Response a|
  *Example:* GET http://resolver/api/v1/packageFilters?package=myPackage-1.2.3
  
  *Code:* 200
  
  *Content:* A list of filters associated with the package.
  