Idea to mitigate memory overhead

[stefanpenner]

We should likely only retain (in memory) files contents if they are under a certain file size.
The optimization is most important for lots of small files, but for larger files I suspect retaining the content in memory is worse then just re-reading it.

[hjdivad]

Notes

likely want to avoid strings > 10,000

(on sample app with 22MB estimate with 4381 items top ~1000 approx 10-15MB which would be covered by > 10,000)