Merge remote-tracking branch 'Luke/master' into wwdc-performance

Conflicts:
	Source/MMRecord/MMRecordResponse.m

Conflicts:
	Source/MMRecord/MMRecordResponse.m
Few more tweaks to performance project
Adding fetch batch size to fetch request

Conflicts:
	Source/MMRecord/MMRecordResponse.m
Check in
Fix
Fixed! Performance down to 300ms for 1000 records. 10000 in 2.3s and 100000 down to 25 seconds.
Removing logs and adding docs