Compile Time Changes

// Class: cm.abstract.revHistory.RevHData
Old: extend public Snapper[] affectedSnappers(World world)
New: extend public Snapper[] affectedSnappers()

Old: extend public void append(Snapper z, RevHItem item)
New: extend public void append(RevHItem item)

Old: extend public void appendNew(Snapper z)
New: extend public void appendNew()

Old: extend public void removeItem(int idx, Snapper snapper=null)
New: extend public void removeItem(int idx)

// Class: cm.abstract.revHistory.RevHItem
Old: extend public void setValue(RevHData data, str key, str v)
New: extend public void setValue(str key, str v)