Update persister spec
Update idHandler.decrement()

Handle extended ids ending with letters.
Add idHandler.isExtendedId() and extendId()
Update handling of artificialToken ids
Add idHandler.increment() and refactor
Don't give out artificialIds twice
Don't give out placeholder strings twice
Allow changes to artificialToken strings
Fix formatting in search template
Extract searchByString directive
Refactor search
Add watches to searchByString directive