Issue #2629182 by zerolab: Changed FlagViewsLinkField to output nothing when there is no applicable flag.
Issue #2629202 by zerolab: Fixed views field label to be singular and in sentence case.
Issue #2629162 by zerolab: Removed @package from docblocks.
Issue #2581505 by joachim: Changed flag operations to be on admin paths.
Issue #2600146 by joachim, martin107, nlisgo: Fixed missing test coverage for flag link output locations.
Issue #2625418 by martin107: Changed calls to \Drupal::l() and t() in FlagFormBase.
Issue #2465095 by martin107, m1n0: Fixed classes in @param and @return to be fully-namespaced.
Issue #2624602 by Upchuk: Changed attributes passed to theme_item_list() to use an array for the class.
Issue #2619232 by emclaughlin: Renamed AdminUI class to AdminUITest.
Issue #2466703 by tduong, joachim, Berdir: Fixed missing token on reload and AJAX link types.
Issue #2619848 by tduong: Removed UI text about downloading Views.
Issue #2617210 by martin107: Changed FlagDeleteForm to inherit from EntityDeleteForm.
Issue #2616154 by edurenye: Removed workaround removal of operations in FlaggingViewsData now core bug is fixed.
Issue #2448881 by penyaskito, socketwench, edurenye: Fixed adding relationship to user views.
Issue #2467035 by joachim, anil280988: Fixed FlagFieldEntryTest::doEditFlagField() to click a link rather than construct a URL.
Issue #2611798 by martin107: Added the $flagService property to FlagTestBase and changed FlagServiceTest to inherit from it.
Issue #2489072 by martin107, socketwench, emclaughlin: Fixed deleting a Flag does not delete flaggings.
Issue #2564085 by emclaughlin: Removed Views UI dependency.
Issue #2491839 by joachim: Fixed calls to drupal_static from OOP code to use __METHOD__.
Issue #2594275 by sdstyles: Removed files for integration with Travis CI.
Issue #2593539 by eyilmaz, martin107: Fixed FlaggingService->getFlaggingUsers does not return array of users.
Issue #2599074 by asgorobets: Fixed flag link pseudofield is displayed on all view modes when the setting is disabled.
Issue #2598550 by edxxu: Fixed AJAX flag link doesn't update due to missing format parameter in the flag URL.
Issue #2598528 by edxxu: Fixed link CSS ID in AJAX response.
Issue #2598468 by edxxu: Fixed incorrect call to unflag() in AJAXLinkController.
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