metadata  - added notice to spec.
Merge branch 'development' into filter
filter - empty pattern should not be expanded to empty regexp (causes race conditions)
filter - fixes to journal and journaltest
filter - more fixes
filter - cosmetic fixes
filters - dry run option, dry-run+filters implemented for sync, some DSL for ForkEngine
dry-run and filters implemented for all commands
config engine should catch unknown options in config
Bug fixed - allow option aliases/depracted options appear in config file
Deny list options in config file
filters - additional check that filters dont appear in config