Merge pull request #3 from djphoenix/master

Exponential coordinates support
Exposing SVGPathGenerator as that turns out to be useful to an app I was writing.
Changing test file to work on a problem with changing the font mid-text path.
Making use of Xcode 6 IBInspectable attributes.
Static analyzer had be complaining about an uninitialized variable.
Moving to using the Xcode 6 custom attributes.