Merge pull request #5 from Nihlus/fix-vector-componentminmax

Mark Min/Max as obsolete and implement ComponentMin/Max and MagnitudeMin/Max for all vector classes.

diff --cc src/OpenTK/Math/Vector4.cs
Simple merge

diff --cc tests/OpenTK.Tests/Assertions.fs
Simple merge

diff --cc tests/OpenTK.Tests/Vector2Tests.fs
Simple merge

diff --cc tests/OpenTK.Tests/Vector3Tests.fs
Simple merge

diff --cc tests/OpenTK.Tests/Vector4Tests.fs
Simple merge