Integration of crawler into project
Revert "Integration of crawler into project"

This reverts commit 25dc1630765384e708b3afc4f79111880c5062b6.
Revert "Revert "Integration of crawler into project""

This reverts commit 4db1fbf987b6282ea4dd4be308ebe0cce77ebb09.
Revert "Integration of crawler into project"

This reverts commit 25dc1630765384e708b3afc4f79111880c5062b6.
Vasya resolved the conflict of merge