v1.7

Added PixelSearch. Supports WICBitmaps.

• Add ImageWidth() and ImageHeight().
• Implement PixelSearch for ImagePutBuffer.
• Extend ImagePutBuffer with width and height properties.
• Support new conversion type wicBitmap.
• Keyword arguments are now passed to from_XXX functions.
• Positional arguments have always been passed to put_XXX functions.

Improvements and Bugfixes

• Allow special syntax ImagePutFile(0) to generate a sequence of files.
• Stream header size increased to use 256 bytes for extension detection.
• Use the native DPI awareness of the window to prevent black borders.
• No longer locks files while reading.
• Increase speed reading from files.
• 2x speed converting to and from base64 and hex.
• 3x speed when input type is a sprite.
• {image: foo} is now accepted everywhere.
• Read from IWICBitmapSource and IWICBitmap.