Use module name when __sourceUrl undefined

When an error occurs during __eval, fall back to module name value when
sourceUrl is undefined.
Merge pull request #131 from jgable/moduleNameOnError

Use module name when __sourceUrl undefined
Merge pull request #133 from guybedford/master

starting to get source maps in Firefox
remove sourceURL checks
fixes #134
Switch to ES6 Promise polyfill
Default bower package to sans promises
Fix node es6-promise require
Merge pull request #136 from josh/es6-promise

Switch to ES6 Polyfill
build and include promises as npm dependencies
traceur location
Merge pull request #137 from calvinmetcalf/test-dep

traceur location