Merge pull request #18 from JonNatanael/master

Popravil modele, upam, da bo uredu.
Merge pull request #19 from JonNatanael/master

Popravil css in dodal nove stolpce v display tabele (tudi v adminu).
Merge branch 'master' of https://github.com/ipri2013/pgbench
Changed API limit to 0.