We need a generic way to create testing objects

[javigomez]

Different ways of naming objects are used in weblinks test. We should find a common way to put titles in generated elements: categories, weblinks...

The AdministratorCategoryCest file needs to be refactored to use @depends tag and to define in the constructor the category object that we will use.

[javigomez]

Also we need to reuse JoomlaBrowser methods like: $I->searchForItem()