Hide irrelevant panels in Mercurial/Subversion, fix Subversion URIs

Summary:
Ref T10923.

  - Hide "Automation", "Staging" and "Branches" in repositories where they do nothing.
  - Fix SVN SSH URIs to read "svn+ssh://" and have proper paths.

Test Plan:
  - Verified irrelevant sections did not appear in Subversion in Manage UI.
  - Checked out a new hosted SVN repository.

Reviewers: chad, avivey

Reviewed By: avivey

Maniphest Tasks: T10923

Differential Revision: https://secure.phabricator.com/D15874

src/applications/diffusion/controller/DiffusionRepositoryManagePanelsController.php

@@ -27,11 +27,16 @@ final class DiffusionRepositoryManagePanelsController
 
     $panels = DiffusionRepositoryManagementPanel::getAllPanels();
 
-    foreach ($panels as $panel) {
+    foreach ($panels as $key => $panel) {
       $panel
         ->setViewer($viewer)
         ->setRepository($repository)
         ->setController($this);
+
+      if (!$panel->shouldEnableForRepository($repository)) {
+        unset($panels[$key]);
+        continue;
+      }
     }
 
     $selected = $request->getURIData('panel');