add feature: pyv-cli refresh +key "source_files" in metadat 

code cleanup + engine version bump 

code cleanup + engine version bump 

(minor change)improve Err message related to the paperclip bug 

a few bugfixes before a new release 

mod template4(roguelike)--> need out-of-the-box compat with WebCtx! 

ver bump, (dirty release mb) 

ver bump 

bugfix:critical bug in ecs wipe_entities 

bugfix in template2 (platformer)