Povezan ciklus u tickets, admin i update

- Dodata veza izmedju Cycle i Ticket modela
- Nesto admina za multimediu
- Uradjen update laravela i dodata biblioteka za manipulaciju  slika
Merge branch 'master' of https://github.com/svemirko/pkf

# By filip
# Via filip
* 'master' of https://github.com/svemirko/pkf:
  pred tickete