code clean up:
-remove app.* files from library
-remove unused imports, code, files (Old search pages for results, dataproviders, map search page, etc)
-remove Freeguard from modules
-unsubscribe all subscriptions
-Services: configuration, isvocabularies, user management: unsubscribe from app component or the component that uses them (clearSubscriptions())
-Fetchers: unsubscribe from the component that uses them (clearSubscriptions())
git-svn-id: https://svn.driver.research-infrastructures.eu/driver/dnet40/modules/uoa-services-library/trunk/ng-openaire-library/src/app@59816 d315682c-612b-4755-9ff5-7f18f6832af3
argiro.kokogiannaki
konstantina.galouni