User handling, not completely working
Merge branch 'master' of github.com:Bladtman242/ITU.Year2.RentIt
Merge branch 'master' of github.com:Bladtman242/ITU.Year2.RentIt
Merge branch 'master' of github.com:Bladtman242/ITU.Year2.RentIt
C# language spec added to bib
Added source for the premature optimization concept
Added sections on objects and lazy loading