UIImageView category for using initials as a placeholder image, written in Objective-C. For a Swift implementation, see https://github.com/bachonk/InitialsImageView
[fix]: reduce minimum required iOS version to 6.0
[feature]: improved color randomization by seeding drand48() function (#15)
[feature]: Added support for custom font attributes [fix]: Reduced font size multiplier
[Feature]: new setter parameter for custom fonts [Feature]: emoji support [Fix]: removed potential invalid context issue