Increment age value
Merge pull request #45 from kattrali/increment-age-value

Increment test model values
Add +[NSManagedObject find:] collection operator

- Makes best effort to perform more efficient search for a single record using
NSFetchRequest.fetchLimit

- Does not create a record when no matches are found
Expose -[NSManagedObject where:limit:]
Restore fetchWithPredicate:inContext:

- use default fetch limit of nil (unbounded)
removed -save when -delete was called. tidied up specs
Specified ruby version to fix Travis and CocoaPods
returned [] instead of nil when there's no records
updated project settings
Make limit tests more clear
Resolve conflicts
Merge pull request #50 from kattrali/find-without-create

Add +[NSManagedObject find:] collection operator
added a failing test for findOrCreate mappings
Added xctool update, just in case
reformatted code
removed only active arch flag
WARNING: this changes -mappings to +mappings. Fixed findOrCreate mappings
update documentation for class-level mappings
try with xcodebuild again
forgot to turn back relationship creation fix. Fixes #49