fixed for Xcode 6 running on iOS7 simulator in OS X Yosemite
include QuartzCore/QuartzCore.h to propper support CGFloat
Merge pull request #373 from jonasschnelli/iOS8

include QuartzCore/QuartzCore.h to propper support CGFloat
refactored for performance

the next and release methods are computed once at class initialization
time
using more elaborate preprocessing to account for Mac SDKs
Merge pull request #365 from CalQL8ed-K-OS/issue/347-Crash_on_iOS_7_in_DDASLLogCapture

DDASLLogCapture fixed for Xcode 6 running on iOS7 simulator in OS X Yosemite
Merge commit '533a0bf903730d90afd3422568b867eca3827050'

* commit '533a0bf903730d90afd3422568b867eca3827050':
  using more elaborate preprocessing to account for Mac SDKs
  refactored for performance
  include QuartzCore/QuartzCore.h to propper support CGFloat
  fixed for Xcode 6 running on iOS7 simulator in OS X Yosemite