now, usernames can contain only alphanumeric characters

v0.5.33

refactor: now, usernames can contain only alphanumeric characters

added username validation to validator service

v0.5.32

feat: added username validation to validator service

added password validation to validator service

feat: added password validation to validator service

* Added password validation to validator service
* Added Birthdate and password validator options

removed error return parameter from validator service's Email and Birthdate functions

v0.5.29

refactor: removed error return parameter from validator service's Ema…

set the auxiliary validator function as a variadic parameter

v0.5.28

test: set the auxiliary validator function as a variadic parameter

added an auxiliary validator function to the CreateValidateFn

v0.5.27

test: added an auxiliary validator function to the CreateValidateFn

added Email and Birthdate functions to validator service (again)

v0.5.26

feat: added Email and Birthdate functions to validator service (again)

added nil mapper checker on CreateValidateFn

v0.5.25

refactor: added nil mapper checker on CreateValidateFn

substituted validations service's Validate function by CreateValidateFn

v0.5.24

refactor: substituted validations service's Validate function by Crea…

removed redundant code

refactor: removed redundant code

* Remove redundant code
* Upgraded dependencies