Merged r13334 (#17486).

git-svn-id: http://svn.redmine.org/redmine@13389 e93f8b46-1217-0410-a6f0-8f06a7374b81
Fixed: Files assigned to a version can not be deleted if Issue Tracking module is disabled (#17163).

Patch by Michael Esemplare.

git-svn-id: http://svn.redmine.org/redmine@13390 e93f8b46-1217-0410-a6f0-8f06a7374b81
Fixed: The error flash message on session expiration is not in the language of the user but of the user of the previous request (#17023).


git-svn-id: http://svn.redmine.org/redmine@13391 e93f8b46-1217-0410-a6f0-8f06a7374b81
Makes sys#fetch_changesets accept POST requests (#17077).

git-svn-id: http://svn.redmine.org/redmine@13392 e93f8b46-1217-0410-a6f0-8f06a7374b81
Moves project sidebar content to a partial (#17380).

Patch by Jérôme BATAILLE.

git-svn-id: http://svn.redmine.org/redmine@13393 e93f8b46-1217-0410-a6f0-8f06a7374b81
Adds a test for default context of controller hooks (#16930).

git-svn-id: http://svn.redmine.org/redmine@13394 e93f8b46-1217-0410-a6f0-8f06a7374b81
Issue API: include is_private attribute in xml/json output (#10914).

Patch by Shivam Daryanani.

git-svn-id: http://svn.redmine.org/redmine@13395 e93f8b46-1217-0410-a6f0-8f06a7374b81