CocoaLumberjack without the iOS 6 build warnings

CocoaLumberjack.podspec

Pod::Spec.new do |s|
  s.name     = 'CocoaLumberjack'
  s.version  = '1.6.1.custom'
  s.license  = 'BSD'
  s.summary  = 'A fast & simple, yet powerful & flexible logging framework for Mac and iOS.'
  s.homepage = 'https://github.com/robbiehanson/CocoaLumberjack'
  s.author   = { 'Robbie Hanson' => '[email protected]' }
  s.source   = { :git => 'https://github.com/robbiehanson/CocoaLumberjack.git',
                 :commit => 'cce9f8029f29d1d44e9eedd0e5b958472694eac3' }

  s.description = 'It is similar in concept to other popular logging frameworks such as log4j, '   \
                  'yet is designed specifically for objective-c, and takes advantage of features ' \
                  'such as multi-threading, grand central dispatch (if available), lockless '      \
                  'atomic operations, and the dynamic nature of the objective-c runtime.'

  s.requires_arc = true
  s.source_files = 'Lumberjack'
  s.clean_paths = 'Benchmarking', 'Xcode'
end