replace borrow in structs with Rc< RefCell< Resources>> + update exemples to work with the new system
make examples work
use Rc for view instead of RWArc
Update README.md
update travis.yml to enable doc generation for rust-ci
fix travis build
update travis
update travis.
remove warnings from pong example
Merge pull request #21 from JeremyLetang/remove-borrow

Remove borrow who are too restrictive