Update README.md

Added donation button
Fixed donation button
Updated button
Smaller button used now
Fits in with readme better
Cleaner to manage links now
Fix variadic template to work with perfect forwarding
Merge pull request #28 from tivek/master

Fix variadic template to work with perfect forwarding
Merge commit '6f961930803599b5942ee5f4bf9b6c8a5f61ea34' into develop

Conflicts:
	README.md
	include/anax/Entity.hpp