[ new ] matrix norm enabled.
Merge branch 'master' of https://github.com/tatsy/LinearAlgebra
[revise] bug fixed
[revise] minor bug fixed.
[commit] resolve conflict
[ new ] prototype of tri-diagonalization added.
[commit] repository cleaning
Merge branch 'sub'

Conflicts:
	funopttoolkit/Matrix64f.cpp
	test/test_linsolve/test_linsolve.cpp