Fixed that float custom fields do not use CSV decimal separator (#10364).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11441 e93f8b46-1217-0410-a6f0-8f06a7374b81
Makes all time entry columns available in the CSV export.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11442 e93f8b46-1217-0410-a6f0-8f06a7374b81