remove project references to spline
codesigning uses automatic developer identity
add comment pragmas and re-order implementation methods
add shared xcode data
whitespace
remove unused instance var
whitespace
add gitignore
xcode removes checkout file
universal for iphone and ipad
automatic provisioning profile
add xcode auto default image
upate to use ARC
move instance vars into @implementation
refactor. lineWidth a property
auto-synthesize of lineColor
point ivars are properties
property empty is auto-synthesized
remove setter calls in init methods
refactor. rename ivar _path