introduced cocoapods
introduced NSArray extensions
introduced initial podspec
introduced UIDevice extension to get current platform
introduced platformIdentifier as a property
introduced NSOperationQueue extension which provides a simple background queue
structural changes
introduced ZLJMath
introduced some convenience macros
introduced number conversions which include assertions if conversion is not safe
updated some names (methods, constants, …)
updated podspec
fixed a problem with missing functions
fixed some minor problems
updated pods
introduced CocoaLumberjack
introduced ZLJSimpleLogger
introduced SINGLETON-macro
updated podsepc
updated version