Fix framework includes for Mac OS X

I found this problem attempting to run rtags on a work project. When we build with frameworks they are included using '-F' on the compilation command line. Previously rtags was not treating these specially and lumping them in with all the other "uninteresting" arguments at the end of the command line when running clang under the indexer. This breaks the ordering of include paths.

I also fixed some debug prints that were referring to old variables, and tried to make a few of them more verbose as to their origin (indexer vs server, etc).

Lastly, I found that on Emacs 24.3, cl-lib doesn't have 'defun*' anymore. It uses "cl-defun", so I added an alias for this case.

I will also be issuing a pull request for rct -- I found I needed to add '-std=c++11' when running the HAVE_CXX11  check.

Thanks for a very useful tool!