Fix for Validator bug with digits_between which allowed non numeric values to pass as long as string length was within limits. Now does numeric check first, working exactly as digits-rule but with length range
Update validateRequired to validate empty Collection

Update validateRequired to validate empty Collection.
Update validateRequired To Validate An Empty Collection

Check if it implements countable
Delete whitespace

Delete whitespace
Merge branch '4.2'
Merge pull request #5759 from mortimerh/fix-validator-digits-between

Fix validator digits between
Merge branch '4.2'