Modified the makefile for ICG to be able to use clang from yum, fink, and manual installs. Removed the requirement for copying the clang friendly header files into Trick. However Trick will be expecting the clang header files to be in it's search path.
refs #40
Moved the io_src code created by sim_services to sim_servivces/include. Also found some makefiles that needed to be changed to refer to the makefiles in their new locations.
refs #63
Changed all header file once include variables to follow the same naming
convention and not start with any underscores. Also deleted old
incorrect copyright notices. Also removed $Id: tags from all files.
Fixes#14. Fixes#22.
