Adjust makefiles for eSDK 2014.11

I included 'parallella-software-caching-example' in the new headless Parallella Ubuntu image (w/ eSDK 2014.11). It's in the default users home directory. Apparently I forgot that I had tweaked the Makefiles when I tested this.

If you accept this change, then users could just do a 'git pull' to make it work.

Thanks,
Ola