add submodule googletest
fix problem with aclocal path that affected libtool
Merge branch 'master' of github.com:Macaulay2/M2

Conflicts:
	M2/Makefile
fix a file
change link order
my makefiles
Change test to lower nits needed for equality.

The value of 94 bits was not rigorous, and even though it worked on many
systems, on seneca at cornell math, SL, it failed.