Add aliases to the list of keywords

This commit makes sure that a dependency can be found in the UI via its
aliases, if any.

Closes gh-231

initializr-service/application.yml

@@ -120,8 +120,6 @@ initializr:
               artifactId: spring-boot-starter-web-services
             - versionRange: "[1.1.0.RELEASE,1.4.0.M3)"
               artifactId: spring-boot-starter-ws
-          keywords:
-            - ws
         - name: Jersey (JAX-RS)
           id: jersey
           description: the Jersey RESTful Web Services framework