Drop unused resources.zip.cfg

It comes from some OGRE example code as pointed out by @oyvindln on #324.
Small additions to the README
Merge pull request #359 from akien-mga/development

Drop resources.zip.cfg
Made the slime transparent and changed type 2 tentacle color

Made the slime transparent and changed type 2 tentacle (tiger pattern)
color to an albine style;
Also, first pull! :)
Fixed MSVC compilation.
Fixed ODPacket::readPacket() as done by @hwoarangmy