add solving functions for 2x2 and 3x3 matrixes.
add tests for Matrix2.solve, Matrix3.solve2 and Matrix3.solve and fixed the solve functions.
change contains to be true only when the contained element is smaller than the container.
add Matrix4.solve and fixed Matrix4.solve2
Merge pull request #30 from laszlokorte/contains-real

Change Aabb2/3 contains() to be not reflexive
fix comments
read storage only once.
Add Vector2/3/4List type
Merge pull request #29 from laszlokorte/solving

[WIP] Solving functions for Matrix2/3/4
Rev version