add test_git dir
modify test_git/test_revert
update Gemfile
Revert "modify test_git/test_revert"

This reverts commit c2eb9bd53e7b6816d8d1680b5d4f896604cf61f4.
add test_partial_revert
add new line to test_partial_revert and test_revert
update user
add devsie
rm engine config for db:migrate
change postgres db config user to share