Added conversion from NSString to NSNumber into imports
Added Unit test for string to number conversion
[296] Fix problem with NSStrings trying to be parsed as an object
Fixed problem with To-Many relations retrieved as a single object
Additions for client app
Add helpers to specify persistent stores and model files at specific URLs, not auto configured ones
If saving a MOC when it's a NSConfinementConcurrencyType, don't use performBlock* on save
Expose path creation helper in NSPSC
Add findLargestValue and findSmallest methods to collect pattern that finds min/max values for a field by setting fetch limit to 1 and sorting the results appropriately.
Altered saveInBackground implementation to use NSConfinementConcurrecnyType MOCs for saving
perform saveWithBlock in background on global low priority queue
Log when trying to use inContext: method and result is nil
use objectWithID rather than existingObjectWithId:error: for inContext: method
Add helper for confinement context type
Add method to select an attribute from an entity
ie. select column from table type of functionality
Merge branch 'feature/experiemental' of github.com:magicalpanda/MagicalRecord into feature/experiemental
Merged 2.1 into experimental branch
Update save examples in README

Fixes #381
Add convenience method for mainQueueContext
Fix https://alpha.app.net/tonymillion/post/2397422
Making context convenience methods more consistent, removing unnecessary/redundand methods