Update Vector2.h

Changed crossMultiply and dotMultiply to 'Cross' and 'Dot' respectively
Update Vector2.cpp

Changed crossMultiply and dotMultiply to 'Cross' and 'Dot' respectively
Merge pull request #59 from heroyi/patch-1

Update Vector2.h
Merge pull request #60 from heroyi/patch-2

Update Vector2.cpp
Revert "Update Vector2.h"
Merge pull request #61 from GearChicken/revert-59-patch-1

Revert "Update Vector2.h"
Revert "Update Vector2.cpp"
Merge pull request #62 from GearChicken/revert-60-patch-2

Revert "Update Vector2.cpp"
Merge pull request #67 from liam-middlebrook/master

Added support for travis.yml
Updated license to zlib/libpng and made it a markdown file
Not sure why this hasn't been removed before!
Updated MINX License to zlib/libpng!
Updated LICESNSE parts to actually mention MINX
Removed LICENSE-Header file, because now the entire licesne can be the header for each file
Updated LICENSE text to display MINX as header
Merge branch 'master' of https://github.com/liam-middlebrook/MINX into feature/colormath

Conflicts:
	include/MINX/Graphics/RenderTarget.h
	src/Graphics/Texture2D.cpp
	src/Input/Axis.cpp