Update Traceur and make it autoupdateable
Merge pull request #23 from ai/traceur49

Update Traceur and make it autoupdateable
0.8.0
lock Traceur version as frequently does breaking changes
bump deps
better error reporting
0.9.0
Use vynil's relative attribute as module filename
Fixes #22, and adds tests for "register" and "cjs" module implementors