Install with pre-g++ 4.7

[JohnForadKelley]

Error using make in g++ versions 4.3 - 4.7

Error: g++ -c -Wall -g -std=c++11 AbundanceLoader.cpp -o AbundanceLoader.o -I ./
cc1plus: error: unrecognized command line option "-std=c++11"
make: *** [AbundanceLoader.o] Error 1

$ g++ --version

g++ (GCC) 4.4.7 20120313 (Red Hat 4.4.7-16)
Copyright (C) 2010 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

If between 4.3 and 4.7, will need to edit the /src/makefile

change:
$ nano makefile

-std=c++11 --> -std=c++0x

Fixed issue for installation.

[shahrok]