Add Edit All link to Differential revision

Summary:
Some text editors support opening multiple files at once.
I've used space as paths separator which may be compatible with some other
editors (I didn't tried any other though).
Note: This approach is incompatible with spaces in paths.
I am fine with changing it to anything else to support such paths or more
editors.
Probably the cleanest solution (yet still incompatible with most editors) would
be to use something like ##editor://open/?file=A&line=1&file=B&line=2## but it
would require also changing the way how it's configured and I think it's not
worth it.
BTW, I've used a hacky bookmarklet for this feature before.

Deleted or added paths may not exist in users filesystem but we don't know which
so the button tries to open everything.

Test Plan:
Click Edit All.
Delete Editor Link in settings, verify that the button is missing.
View diff without revision, verify that the button is missing.

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, epriestley

Differential Revision: https://secure.phabricator.com/D1741

src/applications/differential/controller/revisionview/DifferentialRevisionViewController.php

@@ -262,6 +262,11 @@ class DifferentialRevisionViewController extends DifferentialController {
 
     $toc_view = new DifferentialDiffTableOfContentsView();
     $toc_view->setChangesets($changesets);
+    if ($repository) {
+      $toc_view->setRepository($repository);
+    }
+    $toc_view->setDiff($target);
+    $toc_view->setUser($user);
     $toc_view->setStandaloneViewLink(empty($visible_changesets));
     $toc_view->setVsMap($vs_map);
     $toc_view->setRevisionID($revision->getID());