Repository method rename

[baukevdw]

Rename the repository methods so that they match the method names of other neat components

• [x] Reach consesus about the method names:

  
  findOne()    --> one()
  findAll()    --> all()

findById() --> oneById() byId()?

iterateAll() --> iterate() iterateAll() collection() --> collect() collectAll() collection()?

- [x] Rename methods
- [x] Fix tests

[annavanbiemen]

I'd go for:

exists() -> has()
findOne() -> get()
findById() -> get()    (just pass an integer id as conditions)
findAll() -> all()
iterateAll() -> iterate()

collection() is just fine IMO. It clearly indicates the output from the method, while collect() doesn't.

The exact same naming should also be reflected in the Entity(Trait).

[annavanbiemen]

Furthermore there's an inconsistency in toArray, fromArray and createFromRow, createFromRows. Array? Row? These names are inconsistent and maybe longer than required.

createFromRow could be just create and is createFromRows actually used/needed?