REST/MVC Category Controller

REST/MVC Path for Category definition
HTTP Method	Path	Description	Controller Method
	*/rest/categories/{categoryKey}*	Retrieves category by category key	getCategory(categoryKey : String)
	Parameters: *categoryKey:* Category primary key (Path parameter)
	/rest/categories/	Adds a new category	addCategory(category : CategoryDTO)
	Parameters: *category:* Category json (Body)
	/rest/categories/{categoryKey}	Updates an existent category	updateCategory(category : CategoryDTO, categoryKey : String)
	Parameters: *category:* Category json (Body) *categoryKey:* Category primary key (Path parameter)
	/rest/categories/{categoryKey}	Removes an existent category	removeCategory(categoryKey : String)
	Parameters: *categoryKey:* Category primary key (Path parameter)
	/rest/categories/{categoryKey}/changeVisibility	Changes category visibility	changeVisibility(key : String, visible : boolean)
	Parameters: *categoryKey:* Category primary key (Path parameter) *visible:* Indicates if category must be visible or not (Body param)
	/rest/categories/{categoryKey}/products	Set associated products for a category	updateCategoryProducts(categoryKey : String, productKeys : String)
	Parameters: *categoryKey:* Category primary key (Path parameter) *productKeys:* Lists of associated products of a category (Body param)
	/rest/categories/	Search for categories by criteria	findCategoriesByCriteria(criteria : CategoryCriteria)
	Parameters: *criteria:* Criteria filter json (Body parameter)