Add more number tests and refactor the validation and processing
centralised the formElement.attr.error addition code in the formValidationservice
refactored checkAndConvertFieldToBigDecimal()
refactored so that validators all take object as the field value so we can convert other fields if appropriate, not just numbers
the numberValidator just checks if the fieldValue is a BigDecimal and ignores if not. Now it just checks the minimum and maximum values
Merge branch 'master' of github.com:nerdErg/GoodForm