Add keywords to GUI search index -> rlidwka#312

Author: Gaël Reyrol

lib/search.js

@@ -7,6 +7,8 @@ function Search() {
     this.field('description' , { boost:  4 })
     this.field('author'      , { boost:  6 })
     this.field('readme')
+    this.field('keywords'    , { boost:  8 })
+
   })
   return self
 }
@@ -21,8 +23,9 @@ Search.prototype.add = function(package) {
     name:         package.name,
     description:  package.description,
     author:       package._npmUser ? package._npmUser.name : '???',
+    keywords:     (package.keywords || []).join(' '),
   })
-},
+}
 
 Search.prototype.remove = function(name) {
   this.index.remove({ id: name })