Merge changes from 1.0.x repo.
In setRange() check range argument for positive length.
Added getLocale()/setLocale() methods from 1.0.x repo.
Minor Javadoc edit.
Minor Javadoc edit.
Argument check and Javadoc update.
Argument checks and Javadoc fix.
Javadoc updates.
Merged fix for bug #1056 (gridbands for inverted axis).