FIX:

    (*) To cover g++ w/o C++11 @ older Darwin, removed C++11 specific syntac
	used in DataFormat/hit.cc for looping over hits.

    (*) Bug fix for configuring Linux: there was unnecessary warning message
	introduced by the previous commit. Now gone... sorry...

  This should be good for...
    - Darwin 9.8 (OSX 10.5.8) or later
    - Ubuntu 12.04 LTS
    - Debian/Fedore w/ Linux Kernel > 2.6
    - LArSoft env (SL5/6 + ROOT 5.34.12)

Kazu