Replaced connector options 'variable' and 'scale' with 'scheme' and 'factor' elements that are less confusing and more versatile.
Connectors may now be named in the same fashion as components. There is no functional benefit to naming connectors, but it can make debugging a little easier as error reports will identify connectors by name in addition to their sequence ID.
More configuration errors are reported now.
A few configuration errors that previously generated nasal errors are now trapped and reported nicely by the configuration parser.
Initial version.