Set getAvailableStock() to be ignore by Jackson json serializer to avoid seding duplicate data. getStock() already send item's stocks.
Modifies createOrpdate() to also detect stocks param, and update item's stockPerSize amount. Refector find.byId() to search by id, and creates findBySize.
Adds logic to edit item's images, and stocks' leves per size from edit view in garmentManager.
Item's image is hide in from view (edit and new), if url is null, empty o white spaces.
Adds class type to ArrayList to be suportted by java6.
Merge branch 'DEV' into garmentManager

Conflicts:
	app/controllers/ItemController.java
	app/models/StockPerSize.java
Merge branch 'DEV' into garmentManager

Conflicts:
	public/html/garment/form.html
Merge pull request #83 from mbmihura/garmentManager

Garment manager