This commit will do many different things, but they are all improvements
to the "Ip" rules:
* Remove passing variables by reference: the "Ip" class uses that a lot
to define the start address, end address, and the mask used to
validate a network range;
* Remove double-typed argument from the constructor: the class "Ip"
class has only one argument that can be either a string with the range
of the IP or an integer with options for the "filter_var()" function.
This commit will split it into two different arguments, each of them
used for one of this functionalities;
* Update documentation to show how to validate IPv6.
Signed-off-by: Henrique Moody <henriquemoody@gmail.com>
The current documentation is hosted via GitHub pages rendered by
"Couscous". Every time we need a new version of the documentation
published we need to manually execute the "couscous".
This commit reorganize the documentation to be published to
"Read the Docs" because it will also allow us to have documentations per
version of the library most importantly provider a search field for the
documentation.
The documentation will be then published on:
https://respect-validation.readthedocs.io/
Signed-off-by: Henrique Moody <henriquemoody@gmail.com>
