[gnome-books] (13 commits) ...Merge branch 'wip/hadess/gnome-books' into 'master'

[Bastien Nocera <hadess src gnome org>]

Summary of changes:

  493e9e3... all: Remove gnome-documents specific files (*)
  6352a92... all: Remove gnome-online-accounts, libzapojit, libgdata dep (*)
  317b0fb... Remove TODO (*)
  73d6252... Remove isBooks variable, it's always true (*)
  d0225bf... Remove unused presentation.js (*)
  8a37532... Remove LibreOfficeKit view (*)
  711b99d... Remove search provider (*)
  7668b9e... Remove help (*)
  15a29f2... Remove unused edit view (*)
  8c34c06... flatpak: Restrict files access (*)
  3268852... flatpak: Remove build options (*)
  2c683ac... flatpak: Small tracker build changes (*)
  e4151c9... Merge branch 'wip/hadess/gnome-books' into 'master'

(*) This commit already existed in another branch; no separate mail sent