Added current core data files
update to previous commit
Updates to core data layout
Added version 3 to data model. New stuff:

- Club measurements lie, loft, centerface offsets,
and leading edge are not optional, and have
default values
- Changed name of centerface offset Y to centerface
offset Z
This commit represents a hand-merge of the core data
models changed by myself in Ra, and Eytan in the 
student app.  It also has the generated files from
the new, merged model, but has NOT yet merged in 
Eytan's changes.
Merged NSManagedObject subclasses and added some
new files from Eytan to bring these subclasses
up to date with the last commit

Conflicts:
	Device.h
	GolfSwing.h
	GolfSwing.m
	PocketPro_Universal.xcdatamodeld/PocketPro_Universal 2.xcdatamodel/elements
	PocketPro_Universal.xcdatamodeld/PocketPro_Universal 3.xcdatamodel/layout
	PracticeSession.h
	PracticeSession.m
	Target.h
	Target.m
Integrated last two commits into student app
Updated & refactored swing transfers to bring it 
up to speed with the new core data back end.  This
is still mostly untested and unworking.
Moved DeviceConnection h and m files to the main PocketPro_Student project
Updated timeline retrival error formatting
fixed the stupid bug
Renamed validSwing property in GolfSwing to just valid
added a 5th version to support deletion and validty of swing
Merge branch 'master' of github.com:PocketPro/PocketProCoreData

Conflicts:
	PocketPro_Universal.xcdatamodeld/PocketPro_Universal 2.xcdatamodel/elements
	PocketPro_Universal.xcdatamodeld/PocketPro_Universal 2.xcdatamodel/layout
Merge branch 'master' of github.com:PocketPro/PocketProCoreData
Minor fix
Fix to target+methods encoding of pass domain
Adds new target.
Merge branch 'master' of github.com:PocketPro/PocketProCoreData
Added battery millivolts as a transient property