Merge pull request #287 from fahadhatib/develop

Updates to manual pages for new release
Add StockClone.php - script to create a new item with the same properties, image, cost, purchasing and pricing data as the selected item.
Allow modification of image and general item details before cloning.
Bring new script into line with the coding guidelines
New layout changes
Merge pull request #288 from timschofield/develop

Develop