Merged r13177 from trunk to 2.5-stable (#5706)

fix Ruby Logger doc link.

git-svn-id: http://svn.redmine.org/redmine/branches/2.5-stable@13178 e93f8b46-1217-0410-a6f0-8f06a7374b81
Merged r13180 from trunk to 2.5-stable (#17166)

Japanese translation updated by Go MAEDA.

git-svn-id: http://svn.redmine.org/redmine/branches/2.5-stable@13182 e93f8b46-1217-0410-a6f0-8f06a7374b81
Merged r13184 from trunk to 2.5-stable (#13932)

Fix file upload does not work with Safari.

Contributed by Felix Schäfer.

git-svn-id: http://svn.redmine.org/redmine/branches/2.5-stable@13187 e93f8b46-1217-0410-a6f0-8f06a7374b81
Merged r13185 from trunk to 2.5-stable (#17301)

Czech translation updated by Karel Pičman.

git-svn-id: http://svn.redmine.org/redmine/branches/2.5-stable@13188 e93f8b46-1217-0410-a6f0-8f06a7374b81
Merged r13167 (#16798).

git-svn-id: http://svn.redmine.org/redmine/branches/2.5-stable@13191 e93f8b46-1217-0410-a6f0-8f06a7374b81
Merged r13168 (#16747).

git-svn-id: http://svn.redmine.org/redmine/branches/2.5-stable@13192 e93f8b46-1217-0410-a6f0-8f06a7374b81
Merged r13055 (#16519).

git-svn-id: http://svn.redmine.org/redmine/branches/2.5-stable@13193 e93f8b46-1217-0410-a6f0-8f06a7374b81
Merged r13198 from trunk to 2.5-stable (#17235)

Prevent "can't modify frozen String" exception when mail sending error.

git-svn-id: http://svn.redmine.org/redmine/branches/2.5-stable@13200 e93f8b46-1217-0410-a6f0-8f06a7374b81
Merged r13199 from trunk to 2.5-stable (#17151)

Fix file upload broken on Chrome 36.

Contributed by Felix Schäfer.

git-svn-id: http://svn.redmine.org/redmine/branches/2.5-stable@13201 e93f8b46-1217-0410-a6f0-8f06a7374b81
Merged r13115 and r13171 from trunk to 2.5-stable (#16194)

git-svn-id: http://svn.redmine.org/redmine/branches/2.5-stable@13204 e93f8b46-1217-0410-a6f0-8f06a7374b81
Merge remote-tracking branch 'upstream/2.5-stable' into ro-2-5
bundle update