initiated controller and test class
added basic test method definitions
fixed mapping bug inversedby
added test data
implemented testGetAll
implemented testGetAllSorted
implemented testGetAllPageSize
implemented testGetAllFields
implemented testGetId
implemented testPost, added package to testGetById
implemented testPostNullValues
implemented testPut
implemented testPutNotExisting, fixed package & location declaration
implemented testPutNotExistingPackage
implemented testPutNotExistingLocation, fixed package & location declaration
fixed dir of elements
fixed dir of elements
changed name to code
added test for association fields
package.json and gruntfile.js update for sass