updating 'isValidDob' method to handle the maxAge boundary case

Update hc-utils.js

method 'isValidDob' updated

Adding encodeURIComponent in getQueryStringValue

1.0.14

Adding encodeuricomponent for request parameter

1.0.13: Updating isValidDob function

Added range attribute to the function

1.0.12

Adding utility function parseKeyValue

1.0.11

Making it private