----------
Added
^^^^^
- Added custom exceptions for korona package.
- Added warnings for korona package.
- Added class ``GlobalAttributes()`` for constructing HTML global attributes.
Changed
^^^^^^^
- Moved all the HTML tag attributes from ``html/root/attributes.py`` to their
respective tag files.
- Moved all the global attributes from ``html/root/attributes.py`` to
``html/root/global_attributes.py``.
- In the class for constructing ``anchor`` tag:
- The user can be displayed with warnings for charset attribute.
- Used custom exceptions for all the attributes.
- Changed the name of the method from ``validate_values()`` to
``validate_attribute_values()``.
Removed
^^^^^^^
- Removed ``html/root/attributes.py``.
- Removed ``validate_values()`` method from both ``html.tags.anchor.A()`` and
``html.tags.button.Button()`` classes.