bumping traceur version to 0.0.55

iUpdate traceur to 0.0.55

CHANGES:

  * sourceMap property changed to plural sourceMaps
  * sourceMap result from compiler is in the property named generatedSourceMap
  * update error message for syntax error
1.3.0 traceur 0.55 and warning about API change (sourcemap)
fixing travis for 0.8 and adding 0.11
Upgrade to Traceur 0.0.62

Includes some fixes for Windows
Use `error` in both cases, instead of `errors` sometimes
Stop testing Node 0.8

The build always errors as npm cannot successfully update itself
Distribute less cruft with es6ify
add link explaining runtime features
1.4.0
Upgrade browserify used in testing to the current version
Remove trailing whitespace
Update to Traceur 0.0.72

Lots of tests broken currently. Subsequent commits fix.
Update errors tests for new Traceur
Updating features for new Traceur

Block scoping is now enabled by default. Comprehensions are now disabled by default. Using async functions as the example of things to turn on.
Disable block scope tests until Traceur fixes itself

See https://github.com/google/traceur-compiler/issues/1358.
Update info on source maps
Fix Travis to test Node 0.10, not Node 0.1
docs: adding .jsdocrc and npm docme script
docs: updating docme docs in readme
Add a note about block binding being fail