Correct JSDoc links in `Model` code.
Correct JSDoc links in `Model` code.

`@linkcode` changed to `@link`, as JSDoc is smart enough to recognize code links.
Tutorial links were incorrectly denoted with `@link` tag instead of `@tutorial`.

dougshamoo/bookshelf,jadengore/bookshelf,zubeio/bookshelf,seegno-forks/bookshelf,stonegithubs/bookshelf,shadedprofit/bookshelf,jordansexton/bookshelf,TNuzzi/bookshelf,vellotis/bookshelf,shadedprofit/bookshelf,zubeio/bookshelf,tjwudi/bookshelf,sanchesic89/bookshelf,nodeonly/bookshelf,tjwudi/bookshelf,mdboop/bookshelf,jadengore/bookshelf,sxhao/bookshelf,shaunstanislaus/bookshelf,seegno-forks/bookshelf,vellotis/bookshelf,sxhao/bookshelf,tgriesser/bookshelf,princesust/bookshelf,shaunstanislaus/bookshelf,jadengore/bookshelf,TNuzzi/bookshelf,VideoAmp/bookshelf,sxhao/bookshelf,vellotis/bookshelf,tbutman/bookshelf,TinOo512/bookshelf,chrisbroome/bookshelf,bookshelf/bookshelf,cspotcode/bookshelf,nodeonly/bookshelf,dougshamoo/bookshelf,patbenatar/bookshelf,tbutman/bookshelf,bookshelf/bookshelf,nodeonly/bookshelf,shadedprofit/bookshelf,tgriesser/bookshelf,princesust/bookshelf,apla/bookshelf,TNuzzi/bookshelf,dougshamoo/bookshelf,sanchesic89/bookshelf,tjwudi/bookshelf,jordansexton/bookshelf,apla/bookshelf,tbutman/bookshelf,sanchesic89/bookshelf,princesust/bookshelf,rbong/bookshelf,mdboop/bookshelf,zubeio/bookshelf,cspotcode/bookshelf,patbenatar/bookshelf,shaunstanislaus/bookshelf,VideoAmp/bookshelf,rbong/bookshelf,chrisbroome/bookshelf,stonegithubs/bookshelf,mdboop/bookshelf,VideoAmp/bookshelf,stonegithubs/bookshelf,TinOo512/bookshelf,patbenatar/bookshelf