check rust version on travis (try to debug)
try to solve bug
Made example in README.md compile, Event -> event.
Merge pull request #12 from ulel/master

Made example in README.md compile, Event -> event.
add more #[deriving()] on structs or enum
Add missing doc on enum variant and public structs fields
remove #[fixed_stack_segment] attribut
test with travis
test annother thing with travis
test travis
temporary hack to test travis