* use buffersize to reduce database connection when iterate

* fix typo

* add default value on app.ini comment

* fix upgrade failed after rollback

* fix upgrade failed after rollback

* fix possible upgrade twice fail after rollback

* git: delegate all server-side Git hooks (#1623)

* create hooks directories

* take control hooks back

* fix lint

* bug fixed and minor changes

* fix imports style

* fix migration scripts