v0.4.0 2017-01-29

• BREAK CHANGE do not support coffee-script
• BREAK CHANGE do not support cjsx
• BREAK CHANGE do not support isparta nor options.isparta
• BREAK CHANGE do not support options.istanbul.coverageVariable
• BREAK CHANGE rename options.transpile.babel to options.babel
• BREAK CHANGE rename .initModuleLoaderHack() to initModuleLoader()
• move to istanbul.js and babel-plugin-istanbul, coverage report with original codes!
• move to source-map-support, better stack traces with original codes and lines!
• only support node4+
• better error handling for options.coverage