Added cancel button and visibility of action buttons.
Untested code.
Removed dummy column.
Removed matching temporarily (SkillTree is now visible).
Reordered columns.
Added columns, removed unnecessary comments.
Added created and last update column.
Changed variable name.
Removed unnecessary comments.
Removed unnecessary comments, corrected author.
Implemented search.
Added option panel and deleted checkbox.
Removed unnecessary comments and fixed deleted check for blank search string.
Added refresh on click.
Fixed search for deleted skill and refactored code.
Fixed and added I18N keys.
Added alert box.
Refactoring (magic constant).
Corrected I18N key, some more refactoring.
Add button.