[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
[cleanup] internal rework #2
[fix/evol] corrected before delete hook and added complete hook support for objects
[fix] fixed aspects default hooks
[evol] fix and improve before hooks for aspects
[cleanup] hook_mod -> hook_modify
[evol] improve config #10 (improved object definition check)
[evol] improve config #8 (shadow selection support)