Merged r10434 from trunk (#11897)
Traditional Chinese translation updated by ChunChang Lo.
Traditional Chinese translation updated by ChunChang Lo (#11897)
Anonymous users should not see private issues with anonymous author (#11872).
Slight changes to diff/file/annotate styles.
set svn:eol-style native to test/fixtures/files/hg-export.diff (#11868)
remove empty setup method from test/unit/lib/redmine/unified_diff_test.rb
add functional attachment test of mercurial export file (#11868)
use git diff format for all diff (#11868)
Mercurial diff uses git format.
use radio buttons instead of a select at attachment as same as r10426 repository
Use radio buttons instead of a select.
