operator *= and /= have to pass rhs by value because a const ref that aliases one of the elements of the vector/matrix causes failure (the referenced value changes when that element of vector/matrix is modified)
Regression test tweaks

-don't compile LAPACK tests if LAPACK is missing
-symlink from PWD to TooN in case TooN is checked out with a funny name
-respect CXXFLAGS etc
Fix for missing pkg-config
Merge branch 'master' of git.sv.gnu.org:/srv/git/toon
Make test work with lapack properly.
Remove assert(disc>=0) from SymEigen.

Sometimes disc becomes very slightly less than zero due
to rounding errors. Instead, compute disc using only the
upper triangle and set it to zero if it frops below.
Update ancient README.
Version bump
Remove POSIX character classes in make test.

Otherwise make test doesn't work with dodgy AWKs which seem to be installed
by default in leiu of GNU AWK these days.
More thorough regression test for SymEigen.
Extended regression test for SymEigen<3>

Found a bug! (not fixed yet)
Some fixes for 3x3 eigen decomposition
Fix bugs in SymEigen<3> where it gives wrong answers.
Prefer global namespace for intrinsic math functions such as ::log
Clean up Field a little bit and add some docs.
Merge branch 'master' of github.com:edrosten/TooN
Compatibility fix
Change license to 2 clause BSD