Support fetch limits greater than 100

[Alydyn]

As near as I can tell, fetches from Parse will always be limited to 100 in the current implementation per the default for PFQuery.

I would suggest that we set the limit to 1000 wherever a PFQuery is constructed.

Thoughts?

[msmollin]

I'd rather see a proper implementation for the limit/offset capabilities in Parse. Granted, thats more work, but it would improve performance on 3G connected devices.

[sbonami]

Thanks @Alydyn and @msmollin for the suggestions, I think both the limit and offset/skip capabilities are valuable additions to PFIS. I'm working to get a few other things completed for the library, but feel free to push up any code you may think would achieve this and we can get this done sooner!

[Alydyn]

See: https://parse.com/questions/code-154the-number-of-count-operations-in-progress-has-reached-its-limit-code-154-version-1125

And this: https://parse.com/questions/paging-through-more-than-10000-results

Both worth keeping in mind as an implementation is considered.