Fixes in Database and more queries
Create db communication for password checking
Merge branch 'queries' of https://github.com/tedjk/ProCatering into mergebranch

Conflicts:
	database/Database.java
Fix returns in DBClean and errormessageing
Runnable, however lots of bugs.
Edit: Person,Database. Create: Employee
Runnable
Merged
Merge branch 'master' of https://github.com/zalox/ProCatering
Fix search for customer. Gui additions.
updated Database.findCustomer() and added corporate attributes to Customer.java
Edit: Database,Helper,Order. Create: Dish.
Added addOrder and findOrder to database. Modified order class
Merge pull request #9 from eirikodal/monday

Monday
Register customer overall working, minor tweaks left. Add postalCode database and some methods to helper.
Merged monday
Merge ted Monday complete
Added documentation for customer.
merged
Register customer complete.