Log an InterruptedException

Just so that it doesn't catch a programmer by disguise.
Removed the ConcurrentBuffer subclass.

This should increase consistency and succinctness.
Merge pull request #54 from polerc/Removing-ConcurrentBuffer-Subclass

Removed the ConcurrentBuffer subclass
Changed tab to spaces
Merge pull request #55 from polerc/Log-the-InterruptedException

Log an InterruptedException, fixes issue at https://github.com/Summer-of-FIRST/atalibj/issues/51