Merged r11696 from trunk (#13618).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/2.3-stable@11745 e93f8b46-1217-0410-a6f0-8f06a7374b81
Merged r11680 from trunk (#13541).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/2.3-stable@11746 e93f8b46-1217-0410-a6f0-8f06a7374b81
Merged r11698 from trunk (#13541).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/2.3-stable@11747 e93f8b46-1217-0410-a6f0-8f06a7374b81
Merged r11748 from trunk (#13712).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/2.3-stable@11749 e93f8b46-1217-0410-a6f0-8f06a7374b81
Merged r11750 from trunk (#12650).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/2.3-stable@11751 e93f8b46-1217-0410-a6f0-8f06a7374b81
Merged r11754 from trunk (#12684).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/2.3-stable@11755 e93f8b46-1217-0410-a6f0-8f06a7374b81
Merged r11592 from trunk.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/2.3-stable@11756 e93f8b46-1217-0410-a6f0-8f06a7374b81
Merged r11757 from trunk.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/2.3-stable@11758 e93f8b46-1217-0410-a6f0-8f06a7374b81
Merged r11724 from trunk to 2.3-stable.

Add TODO comment about gantt issues sort (#7335).

Sorting by date was dropped by r4581 (#7128).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/2.3-stable@11769 e93f8b46-1217-0410-a6f0-8f06a7374b81
Merged r11791 from trunk to 2.3-stable (#13950)

remove duplicate Lithuanian "error_attachment_too_big" translation keys.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/2.3-stable@11792 e93f8b46-1217-0410-a6f0-8f06a7374b81
update readme
Merge branch '2.3-stable' of https://github.com/redmine/redmine into production