New Release!

There is a fourth beta release!

• Adds improvements to squeeze, such the purchase action which is used to add products to the stock and store purchase log for further usage.
• Adds some verification functions to each editor, to prevent entering blank users/clients, duplicate/overwrite products and delete default measure/client.
• Redesign of the product editor, now it has a better look/usage, less fields (not needed were gone).
• Some new icons and general code review.
• Lemon now support clients with discounts.