[fix] added missing start of YAML document in MP shadow config files
[evol] added default config and simplified MilkyPond shadow config (and minor other changes)
[evol/fix] fixed creation hooks call, hooks->plugins with hooks and simplified hooks, added plugin parameters in config and updated aspect/fs
[evol] improve config #10 (improved object definition check)
[evol] improve config #8 (shadow selection support)