updated ordercontent.java and subsrcription.java
Merge remote-tracking branch 'origin/order' into singleorder
updated order, ordercontent and subscription
updated ordercontent.java and subscription. Also started with the Helper.java
Rewritten database connection classes, documentation missing. String returns should be rewritten to boolean returns.
expanded customer and employee as own files.
Merge branch 'master' of https://github.com/zalox/ProCatering

Conflicts:
	procatering/Person.java