fixing makefile for local
Adding more Linear Algebra Tests

Additionally, fixed a small bug in the .inv() method. While .inv()
returned the correct inverse, it did so with an additional column at
index '-1'. Although the other functions in the library ignored the '-1'
column, the additinal column prevented equality comparisons. This has
been fixed.

The tests for .inv() are incomplete, pending a deep-approximate equality
method. (See mailing list)
Fixing bug in gauss_elimination and add tests

Added tests for gaussian elimination function. Tests uncovered a bug;
for matricies of dimension greater than 3, the results of
gauss_elimination would always fail because of a problem in the
back-substitution portion of the algorithm. Bug has been fixed.
Merge branch 'master' of https://github.com/jamescgibson/jstat
Merge branch 'upstream'
Removing duplicate distribution tests

Test group for binomial pdf was exactly duplicated
Tests to document issue #100

Important note: the assert.epsilon method that is used for nearly all of
the tests does not check for whether the returned values are NaN, and
will always pass if NaN is returned. This needs to be addressed at a
test suite level; for now, I've written additional assertions into this
test to explicitly check for NaN.