Changed identifier of Orders from position to orderID.
Fixed Test of Product
Made image zoomable and pannable by adding photoView library
Implemented test of equals and sync of Tasks in TaskTest
Added dummy data in dummy constructor in Product
Merge remote-tracking branch 'origin/dev-model' into dev-model

Conflicts:
	test/com/example/lidkopingsh/model/TaskTest.java
Added More test to OrderTest and TaskTest, as well as fixed minior bugs
in Order and Test.
Connected more GUI with model
Added cemetery to tmp stone constructor
Merged with dev-home
Database test does not remove the existing database content.
Merge branch 'dev-layersql' into dev
test
Changed info in list
Merge branch 'dev' into dev-home
Inserting null as a string in constructor of Task,Stone and Product sets
the value to an empty string.

Added another constructor to Product
Konstruktorerna mer robusta, Order tar två nya variabler i konstruktorn.
Fixed tests and dependencis for Order.
Added more test of Listener
Merge remote-tracking branch 'origin/dev-model' into dev-model