Filter + pagination jobs

Doesn’t need words..but just because I’m proud off it and it took me 6
hours to find the problem.. I will give you a description

- ajax call om alle jobs op te halen met pagination
- filter optie die de jobs van 1 categorie ophaalt met pagination
- eager loading with constraints was the solution for most off the bugs
there were this evening

Good night Jonas ;)

PS. in the load jobs.js file staan 2 lijnen commentaar voor u die u
zullen helpen met het opmaken van de pagination links :D (and I put
comments everywhere so you know what is happening on almost every rule
:D It was a good programming day (y)