Remove old files that will no longer be needed
Add first sketch for refactored table-package
Update Table::get('row') to better check for right offset
Add groups (head, body, foot) for Tables
Add missing $_curr_cell to \Table\Group
Add missing interfaces Countable and Iterator to \Table\Group
Add \Table\Row
Change \Table\{Group,Row}::unset to \Table\{Group,Row}::clear
Add fully working, simple usage package content

Next up: Add config and support everything that's in TODO (pagination, filtering, sanitizing, ...)
Fix wrong code that prevented \Table::add_row to add a body-row
Add \Table\Row::skip_cell() to allow for skipping cells
Update ArrayAccess of table to point to group 'body'
Update \Table\{Cell,Group} to fix wrong tag-style if no content was found
Update \Table\Helpers::remove_attribute with fourth argument $purge to completely remove empty-valued keys
Update remove and clear methods of cell, group, and row to allow purging keys
Add \Table\Cell::sanitize to allow for sanitizing the content of a cell
Update classes to provide static 'forge' method
Add sanitzing feature to \Table\Row which passes it along to \Table\Cell
Fix some weird code of \Table\Table::forge() and \Table\Table::instance()
Prepare Table to support working with ORM-models and hydration