add app/views/gantts/show.html.erb
Merge commit 'b7549c299f2dff75233062f13e3b8f3508cbbf1e' into redmine-1.4.x
Redmine r11898
Merge commit 'a26f27cbce6ba4456241c82d776a5a2b8852d6ed' into redmine-2.3.x
Merge commit '149662cb00b09d6e80cd439ccc200085297b75da' into redmine-2.3.x
Redmine r12282
Merge branch 'master' into redmine-2.4.x
Merge commit '8c63a44e85ff6d34f525d34e3afe2bf5bd9fea8f' into redmine-2.4.x
show day instead of cweek
refactoring