[epiphany] Created tag 3.28.6

[Michael Catanzaro <mcatanzaro src gnome org>]

The unsigned tag '3.28.6' was created.

Tagger: Michael Catanzaro <mcatanzaro gnome org>
Date: 1567868732 -0500

    Epiphany 3.28.6

Changes since the last tag '3.28.5':

Alexandr Sidorenko (1):
      Fix Google Search in Russian localisation

Aral Balkan (1):
      Tags with empty labels are no longer allowed in bookmarks

Carlos Garcia Campos (2):
      web-apps: fix deleting of web app desktop file symlink
      web-view: remove the previous extension weak pointer before setting a new one

Michael Catanzaro (9):
      Create sync web context using Epiphany website data manager
      web-view: Handle NULL URIs in ephy_web_view_set_address()
      bookmark: ensure tags sequence is always created
      gsb-service: ref self for lifetime of update thread
      history-manager: avoid critical when deleting URLs not tracked by sync
      download: prepare for WebKitDownload to outlive the EphyDownload
      Do not trust URI during WEBKIT_LOAD_STARTED
      web-view: don't connect to embed-shell in page-created cb
      Prepare 3.28.6