add :environment to test:scm:setup:create_dir and test:scm:update rake tasks (#16881)

git-svn-id: http://svn.redmine.org/redmine/trunk@13135 e93f8b46-1217-0410-a6f0-8f06a7374b81
split method for scm test repository extracting (#16881)

git-svn-id: http://svn.redmine.org/redmine/trunk@13136 e93f8b46-1217-0410-a6f0-8f06a7374b81