add manage_shop_import2
Merge branch 'master' into import2
add rewrite: '//obj/act/&k1=v1&k2=v2'
manage_shop_import2: add upload
Merge branch 'master' into import2
fix: class namespace
import2: ctrl up
Merge branch 'master' into import2
import2: ctrl up
import2: ctrl up
Merge branch 'master' into import2
import2: add remove all uploads
import2: add item get
Merge branch 'master' into import2
import2: add preview items
Merge branch 'master' into import2
import2: clear item filter by load other file
import2: add notifications
import2: add import fields selection
import2: import fields warn on duplicate