Create dedicated item rep snapshot store
Make snapshot store configurable
Require :snapshot_store param
Add missing documentation
Create experimental 4.x version
Merge branch 'feature-separate-snapshot-store' into experimental-4.x
Remove deprecated code
Remove more deprecated code
Merge branch 'experimental-4.x-remove-deprecated' into experimental-4.x
Remove VCSes
Remove tasks
Remove nanoc3
Remove create-item and create-layout commands
Remove update command
Fix tests failing because of removed commands
Merge branch 'experimental-4.x-remove-deprecated' into experimental-4.x
Remove validator leftovers
Merge branch 'experimental-4.x-remove-deprecated' into experimental-4.x
Remove autoload for filters
Remove autoload for helpers