Add feature flag to enable viewing builds and build logs for public repos

static/directives/build-mini-status.html

@@ -1,7 +1,7 @@
 <span class="build-mini-status-element">
   <span class="anchor"
         href="/repository/{{ build.repository.namespace }}/{{ build.repository.name }}/build/{{ build.id }}"
-        is-only-text="!isAdmin">
+        is-only-text="!canView">
     <div>
      <span class="build-state-icon" build="build"></span>
      <span class="timing">

static/directives/repo-view/repo-panel-info.html

@@ -40,7 +40,7 @@
       <!-- Builds -->
       <div ng-if="builds && builds.length">
         <div class="build-mini-status" ng-repeat="build in builds" build="build"
-             is-admin="repository.can_admin"></div>
+             can-view="repository.can_write || Features.READER_BUILD_LOGS"></div>
       </div>
 
       <!-- View All -->