- Got ObjectID working in test
- Remeber to run 'npm install mongodb'
by: Thomas
three webservices and tests added

	findWiki,getCategories, findWikiByCategory
	tests added, along with their routes

	Commit by: Simon
fixed afterHook to close database

	Commit by: Simon
- Made rest service getWiki in rest
- Made relevant test
by: Thomas
- Made rest service getWiki in rest
- Made relevant test
by: Thomas
Merged simon and thomas webservice tests

	all tests are green
	tested with postman

	note: tests must be executed separately
	note: fixed hook in datalayer test
	now connects to db before execution

	Commit by: Simon and Thomas