Fogbugz 3381 - Fixed create account validation

[mjk90]

Updated create account validation regex to catch account names which start with a number

[varshajnagaraja]

I think you should also update the information below Account name text box to inform the user that the name also should not start with number

[mjk90]

I think you should also update the information below Account name text box to inform the user that the name also should not start with number

Account Name description has now been updated

[mjk90]

@jcardenas9x @varshajnagaraja I've removed the "starts with number" validation and also removed some other redundant validation