Added more complete tests for color.

Signed-off-by: matematik7 <domen.ipavec@z-v.si>
Added callbacks for all classes and improved noColorKeyword.

Signed-off-by: matematik7 <domen.ipavec@z-v.si>
Fixed RE for number.

ORed options were in wrong order.

Signed-off-by: matematik7 <domen.ipavec@z-v.si>
Added noLeadingZeros rule.

Signed-off-by: matematik7 <domen.ipavec@z-v.si>