new function getPages in pageStorageFS
pages-api uses now the pageStorageFS module
grunt-file modified so that it watches now also the changes in the app.'s
Merge branch 'feature/pageStorage_getPages' into develop

* feature/pageStorage_getPages:
  grunt-file modified so that it watches now also the changes in the app.'s
  pages-api uses now the pageStorageFS module
  new function getPages in pageStorageFS