[epiphany] (4 commits) Non-fast-forward update to branch wip/sandbox

[Michael Catanzaro <mcatanzaro src gnome org>]

The branch 'wip/sandbox' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  36fc1b5... Revert "Revert "Try enabling the web process sandbox again"
  568c04c... Add important paths to the sandbox
  8a0405e... embed-shell: use a unix:dir address for the D-Bus server

Commits added to the branch:

  d1abfad... build: Ensure config.h is generated when needed (*)
  50112c9... Revert "Revert "Try enabling the web process sandbox again"
  7ac0c27... Add important paths to the sandbox
  66cc6ee... embed-shell: use a unix:dir address for the D-Bus server

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