FIX: ejsLookupVarWithNamespaces residual of name
FIX: exception string message
DEV: add ability for JSON serialize to suppress nulls
UPGRADE: paks - MakeMe 0.8.4 with new Target file properties
REGEN: doc and projects
DEV: Refactor String.expand
DEV: Refactor Path.operate, Path.expand
DOC: Update blend()
UPGRADE: paks - MakeMe 0.8.4 with new Target file properties