- allows RSRParser to be split gracefully from config (was depending on
RSRSep, which was retrieved from the global config variable)
- default separator (;) was the only one used except for splitting
inline attribute values (where ANDSep is used)
changed Value field to unexported and created a Value() method
on each dynOpts type that contains logic to create a rsparser
in case the value field a configuration starts with prefix "~"
otherwise it will return the specified value
