Array, Map, Number, Bool, String: operator* added.
Bool,String,Number can no longer have a different type than the default type.
Use .to<numberType>(runtime) instead of .toNumberType() where possible.

cleanups.
Internally treat ignored parameter values (...) like multi parameters without a name.
mc.
Internal improvements concerning parameter handling.
docs/Changes.txt added.
docs/Introduction: minor updates,
Testcases_Core: Added testcases for new features(parameter expansion and multi parameter improvements)
test.escript: cleanups
EScript.h: contact address added.