FIXED: added Opacity handling to the SVGImageElement. Also refactored the CALayer generation code to be more correct, and shared across all classes
FIXED: all compiler warnings, plus a couple of minor build errors from Apple bugs
FIXED: layers look blurry when rendering with SVGKLayeredImageView
Removed some unnecessary logging, making it less spammy
FIXED: Rect elements now support uneven rounded radius corners
fix KeyValueOserving bug. refer to issue 42
Merge pull request #55 from tsaizhenling/master

keyvalueobserver bug fix. refer to  issue 42
PERFORMANCE: made basic rendering up to 40 percent faster by tweaking Apple internal low-performance.
PERFORMANCE: added optional methods to export an SVGKImage directly into NSData or UIImage with support for Apple's internal performance-optimization / accuracy-reduction flags
Added feature for OpenGL integration: you can flip the output images upside-down to undo Apples incompatible y-axis
Now removing KVO on DOMTree.viewport in dealloc. This is added in initWithParsedSVG and never removed, which causes a leak when an SVGKImage is deallocated.
Merge pull request #56 from joeldev/master

KVO leak in SVGKImage
fix some memory leaks.
sync for thread safety
more memory leaks
increment reference count as per clang
memory leak fix
Fixed small typos and missing comments
more memory leak fixes.
Merge pull request #57 from tsaizhenling/master

memory leaks
Switch from SVGKSourceReader to NSInputStream