Altered variable type tests
Check response status codes before updating
Merge pull request #70 from emiidee/feat/serverRoutes

Refactored user routes part 1 of 2
Merge pull request #69 from leebyp/feat/checkresponsestatus

Feat/checkresponsestatus
Added route to update request status
Refactored get user to exlude password and salt
Renamed function to link a pet and a vaccine and added a place holder for creating a vaccine type in the database
Refactored create pet vaccine entries to automatically retrieve request attributes and extend the model
Renamed get functions to differentiate between pet-vaccine and vaccine