'CocoaLumberjack' dependancy 

It look like a copy of the class from the project "Cocoa Lumberjack" is included in Freestyle, which break compatibility and the ability to import it via cocoa pod.

Really the best would be to edit your pod spec and the pod normally:
  pod 'CocoaLumberjack', '2.0.0-beta4'

I forked your master and did it, if you feel like integrating it back
- Added a PodFile to the Library importing   pod 'CocoaLumberjack', '~> 2.0.0-beta4'
- Modify the podspec to add dependency

WARNING: 
You now need to run pod install in order to build the Library from the Workspace

TO DO:
Update any script that would build the project automatically to point to the workspace instead of the Project