New ASL capture module, several File logger fixes

• New ASL capture module #242 #263
• Override default NSFileProtection handling #285
• Replaced warnings when ARC was not enabled with errors #284
• Fix for issue #278 where really large log files can keep growing #280
• Fixed Xcode warnings #279
• Update calendarUnitFlags with new iOS SDK values #277
• Fix possible crash in [NSCalendar components:fromDate:] #277
• Fix #262 inverted ifs when renaming log #264
• Proper way of doing singletons (via dispatch_once) #259
• Explicitly declare DDFileLogger and DDDispatchQueueLogFormatter properties as atomic to avoid Xcode warnings #258
• Set NSFileProtectionKey on the temporary file created during compression #256
• Fix a rare crash in CompressingLogFileManager caused by an unchecked result from read #255
• Add explicit casts for integer conversion #253
• Replace use of NSThread.detachNewThreadSelector #251
• Add a constructor override for initWithLogsDirectory: #252
• Check and log the streamError whenever we fail to write during compression and log any failures when removing the original file or cleaning up the temporary file after compression failed #250
• Following Apple's guidelines for iOS Static Libraries #249
• Some extra warnings for the mobile framework xcode project a2e5666
• Update FineGrainedLoggingAppDelegate.m #244
• New [DDLog log:message:] primitive 7f8af2e
• Fixed issue #181 when logging messages in iOS7 devices aren't properly retrieved by asl_search #240
• Allow prevention of log file reuse #238
• DDTTYLogger: Favour XcodeColors environment variable #237
• DDLog: calling atexit_b in CLI applications, that use Foundation framework #234