Animation Settings

Added internal animation determinate type (kGraphUpdateType). Moved ARC check to the implementation. Added basic support for insertPointAfterLastIndexWithValue: and insertPointBeforeFirstIndexWithValue:
Removed Insert/Delete Point Features

Due to the nature of the current graph setup, it is not possible to add these features without a serious re-work. However, the sample project now demonstrates how to achieve the same effect using already-available methods. Fixed bug in sample app.
Fixed Sample App Bugs

Fixed date display issue in sample app.
Thread Safety for 64-bit

Converted primitive-C types to 64-bit safe Objective-C types.
Memory Management & Type-Safety

Changed unneeded NSUIntegers to NSIntegers, and some to ints (in for loops). Wrapped some for loops in @autoreleasepools (possibly to alleviate memory strain).