ENH: expose ujson precise_float argument on decode

[Komnomnomnom]

The new version of ujson takes a boolean precise_float argument when decoding, this should be exposed when decoding pandas objects.

[jreback]

I can update the docs about precise_float (when you say ready for merge)....

how shall I describe this?

[Komnomnomnom]

Doh, I never think about the docs, ujson describe it as

precise_float

Set to enable usage of higher precision (strtod) function when decoding string to double values. Default is to use fast but less precise builtin functionality

[jreback]

perfect...let's get everything merged in and i'll fix the docs....let me know what to merge and in which order (prob doesn't matter)

testing on windows now

[jreback]

both PR passed on windows (amd-64)

[Komnomnomnom]

Order shouldn't matter (I think) as they both touched different files. I re-based both onto master before pushing.

[Komnomnomnom]

I'm happy for this to be merged now and if / when people are happy with #4299 that can be merged too.

[jreback]

going (only this one until you tell me #4299) ready....in 3...2....1

[Komnomnomnom]

Cool, thanks

[jreback]

thank you!