commenting out the internal log-level settings
removing old Lumberjack.h reference, should be handled via precompiled header.
switching precompiled headers to use the CocoaLumberjack installed via cocoapods
Renaming DDLogC* references to standard DDLog references. If I'm understanding https://github.com/CocoaLumberjack/CocoaLumberjack/issues/220 correctly, this should be okay due to the macro's now using __PRETTY_FUNCTION__
rename to use the lumberjack 2.x constant definitions -- LOG_FLAG_INFO is now considered legacy.