fix file upload broken on Chrome 36 (#17151)

Contributed by Felix Schäfer.

git-svn-id: http://svn.redmine.org/redmine@13183 e93f8b46-1217-0410-a6f0-8f06a7374b81
fix file upload does not work with Safari (#13932)

Contributed by Felix Schäfer.

git-svn-id: http://svn.redmine.org/redmine@13184 e93f8b46-1217-0410-a6f0-8f06a7374b81
Czech translation updated by Karel Pičman (#17301)

git-svn-id: http://svn.redmine.org/redmine@13185 e93f8b46-1217-0410-a6f0-8f06a7374b81
revert r13183 (#17151)

git-svn-id: http://svn.redmine.org/redmine@13186 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@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@13188 e93f8b46-1217-0410-a6f0-8f06a7374b81
Merged r13184 from trunk to 2.4-stable (#13932)

Fix file upload does not work with Safari.

Contributed by Felix Schäfer.

git-svn-id: http://svn.redmine.org/redmine@13189 e93f8b46-1217-0410-a6f0-8f06a7374b81