Update tasks descriptions and log messages
Merge pull request #3 from ericf/descriptions

Update tasks descriptions and log messages
Update deps and use same version of esprima the transpiler uses
bumping for PR #4
more docs
esprima:harmony updates for ES6 modules

* update es6-module-transpiler and es6-module-transpiler-npm-resolver
* using esprima-fb and recast 0.8.x
* adding basic tests
upgrade npm resolver