[Backport to 10.2] - Map directive test fails

Might relate to HIPPOTHEME-67

WARN: 'Google Maps API warning: NoApiKeys https://developers.google.com/maps/documentation/javascript/error-messages#no-api-keys'
WARN: 'Google Maps API warning: SensorNotRequired https://developers.google.com/maps/documentation/javascript/error-messages#sensor-not-required'
PhantomJS 1.9.8 (Linux 0.0.0) the map directive should render one cluster with value "2" for the two close markers FAILED
ReferenceError: Can't find variable: MarkerClusterer
at /var/jenkins/workspace/org_11.0_hippo-theme/src/angularjs/map/map.js:51
at /var/jenkins/workspace/org_11.0_hippo-theme/bower_components/angular/angular.js:8835
at invokeLinkFn (/var/jenkins/workspace/org_11.0_hippo-theme/bower_components/angular/angular.js:8841)
at nodeLinkFn (/var/jenkins/workspace/org_11.0_hippo-theme/bower_components/angular/angular.js:8340)
at compositeLinkFn (/var/jenkins/workspace/org_11.0_hippo-theme/bower_components/angular/angular.js:7731)
at publicLinkFn (/var/jenkins/workspace/org_11.0_hippo-theme/bower_components/angular/angular.js:7611)
at /var/jenkins/workspace/org_11.0_hippo-theme/src/angularjs/map/map.spec.js:35
at invoke (/var/jenkins/workspace/org_11.0_hippo-theme/bower_components/angular/angular.js:4523)
at workFn (/var/jenkins/workspace/org_11.0_hippo-theme/bower_components/angular-mocks/angular-mocks.js:2439)
undefined
Error: Timeout - Async callback was not invoked within timeout specified by jasmine.DEFAULT_TIMEOUT_INTERVAL.
Expected 0 to be 1.
at /var/jenkins/workspace/org_11.0_hippo-theme/src/angularjs/map/map.spec.js:61
...........
PhantomJS 1.9.8 (Linux 0.0.0): Executed 14 of 14 (1 FAILED) (5.617 secs / 5.666 secs)
Warning: Task "karma:single" failed. Use --force to continue.

Aborted due to warnings.